When I finished the call I called my dad to let him know where we were and that there was nothing to worry about but let them know where we were.
SDTG -- Simba called her mum (as requested) and his dad (not requested) to say basically 'nothing is wrong'. There was no need for anyone to know about the visit therefore. It was a non-event. The second post on the subject further clarifies that there was nothing wrong with his DW and he knew this when he called. It also clarifies that he had been asked to phone the DW's mum to give an update. Not his parents, just her mum, with whom she had clearly been in contact before and who was possibly worried on account of the lack of signal.
Simba Essentially (unless you haven't told us you had called your parents as soon as you knew your wife was heading for the hospital) you called your dad with news of a non-event doctors always have to sign off on tests in a hospital; the baby will not be discharged without being signed off by a doctor and nor will your DW when the time comes, and I suspect if you have a chronic condition that was at one point life threatening then you are aware of hospital procedure -- and furthermore you called a party not in a position to help without them staying in your house because they live two hours away. So they can't really help with pets, etc. And your wife has made it clear over the years that these people are not going to get a toehold in her home (you have gone over that, in an effort to paint your wife as an unreasonable harpy).
And they couldn't help with the situation in the hospital either even if it had lasted a lot longer and resulted in induction or a CS unless they had got into their car and camped out in the hospital, which would not in fact have been helpful.
Basically what happened was, you called to draw attention to yourself and to hear concerned voices on the other end of the line addressing you. Concern for you is like opium and you are addicted. (And having to tell you every single time something happens to DW that you are not to call your parents could get very old very fast. You are not on paper anyway some unruly child needing a preparatory talk before going to the supermarket, every single time.)
I see it as an expression of underlying jealousy (related to the issue of needing concern because apparently there can only be one person receiving concern here) -- when anyone else gets more attention for their condition than you are used to getting for yours, your world falls apart and must be patched up again immediately by attention-seeking behaviour.
Ominously for the sake of your marriage, your attention-seeking takes the form of waving your arms madly in the direction of people the DW does not want to have breathing down her neck while yelling 'Look at meeeeeeeee, it's my turn now.. Hey! Over here!' but the attention you crave is more important to you than her wishes. The only crisis you are responding to here, Simba, is the one where the spotlight is suddenly not trained on you. For you, the experience your wife is going to go through is only a problem insofar as it robs you of attention. You have only just barely allowed the details of it to register on your consciousness and you have been actively distancing yourself from much of it. Many of the details (calories burned, etc) that are really not important have made a big impression on you.
You are trying very hard to find ways in which her pregnancy can be used a drama in which you can star. Panic is setting in as you realise via the childbirth classes and now this hospital experience that you will be a bit player in it all. Hence the phone calls looking for atttention. This episode where you drew attention to yourself is exactly the same sort of scenario you had in mind for your Pride Rock moment where you would hold the baby aloft for applause from your usual audience who would be seated waiting for The Simba Show to start whenever the wife finally got through with the warm-up act.
I see the control as a tool of the jealousy. If you can relegate your wife to a bit part through the upcoming delivery by overruling her every decision and doing everything you can to get your parents involved to the utmost and paying attention to you, you retain your own starring role, and everyone continues to dance attention upon you. You are very confident your parents will be there for you only. You need this far more than you need your relationship with your wife or your baby, apparently, or you would not be behaving as you are.
Sadly for you but ultimately for the baby, you do not seem to understand that the baby will also steal your limelight, and what you fondly imagine could be your ultimate starring role will find you sidelined as the people who have always put you first become immediately besotted by the baby. I can see you becoming very resentful of this baby as the truth dawns on you.
...................
As we were leaving the hospital waiting for a taxi I told her I had spoken to my parents to mainly let them know where we were, that they hope she is ok and offered help as always if we wished.
The reason to tell her that you had phoned was to illustrate to her by their response that they are perfectly reasonable and kind people who are only trying to help. In other words, despite the fact that your wife had just been through a worrying experience of pain and a few days of feeling unwell and five hours in the hospital, and is facing a painful and scary delivery experience in a few weeks, you are not missing any opportunity to do PR on behalf of your parents.
My dw has felt unwell the past couple of days
We learn very late in the day that while you have been posting here and complaining about your DW's unreasonableness, all this time she has been feeling unwell. So therefore even more attention-seeking on your part is going on in the face of something real and worrying that your wife is going through.
How much whining about her driving and how unanimously badly your friends think of her and how mean she is to your parents and how little she respects you has been mentioned, while all this time the woman herself has been feeling unwell, in late pregnancy, and you knew she was feeling unwell all this time?
How many hundreds of posts have been directed at you while your wife has been getting on with her life, looking at houses, etc. despite feeling unwell, even trying to save money by driving herself to hospital? You keep coming back for more because it is all attention, for you.
Now it seems trampling over your wife's wishes is justified by sheer manliness. There is always some really good reason 
to ignore the wife here. It's very clear that you have no intention of listening to your wife, and that everything you do is completely above reproach in your own mind.
We may infer from your complete silence on the medical problem up to now that calling your dad had nothing to do with finding solutions to a medical problem in manly fashion. This was about finding solutions to the only important crisis -- the one where your wife is getting more attention than you.
And again with the 'Man' thing and how different the two of you automatically are (and by extension perhaps, 99% of posters here too) -- your wife is not a member of a different species. You are capable of understanding her and being supportive. Millions of men do this and their wives and partners are eternally grateful. You both speak English. You hear what she is saying. You are choosing not to respect her because to do so would mean ceding the spotlight to her.