New neighbours moved in a couple of months ago. Their English isn't brilliant but we have chatted a bit and their son is in the year above DS1 at school. Mrs Neighbour had a baby on Thurs, 3 weeks early. I was off out for a walk with DS2 and DS3 when I saw a taxi outside their house (they don't have a car). Mrs N came out with the baby wrapped in an outfit and bizarrely a towel, Mrs N came out with a car seat and they were trying to get the seat in the car as the hospital MW wanted to check the baby for jaundice. This was the first time I had seen them since the baby was born so made some small talk and then realised they had no idea what they were doing with the car seat (and not did the taxi driver). Mr N said car seat was given to them by a friend, I offered to help (as car seats must be a nightmare if you don't use them regularly) and quickly realised that the seat didn't have the little buckle bit to clip the shoulder straps into. Mr N asked me if they could go with Mrs N holding the baby or whether they had to use the car seat. I said car seat and in the end, I got DS3's car seat out of my car, showed them how it worked and sent them off to the hospital in it with my phone number on the basis that they would bring it back tonight and I'd come and pick them up from the hospital if necess. The baby still wasn't strapped in properly because I unwrapped the towel to find the baby's legs to put the bottom part of the strap through and she kind of moved it and wrapped it up again plus the head hugger bit of the seat for tiny babies wasn't in the seat because DS3 has outgrown it.
I feel a bit uncomfortable about the whole thing and if I was sticking my nose in and being really patronising, am I being daft? Are they going to think of me as the nosey neighbour who muscled in? I am trying not to think about how they got the baby home from the hospital (I don't think she had a homebirth). The bus runs from the next road right to the hospital so they could have got that I suppose. Even if they had put the baby into their seat not strapped in they had no idea at all how to use the seatbelt to strap the seat in. It terrifies me. Ok the hospital is 10 mins drive max (probably more like 5 outside of rush hour) but still.
Tell me I've done the right thing please? Or if IWBU, how should I have handled it?