I have read all your posts OP. I think that some of the posts prior to your DH waking up did actually help you to temper how you were going to react when he woke up. Your DH's reactions upon waking were exactly as they should have been, thank goodness.
One thing still niggles me though (and I feel that I am entitled to that niggle because you were the one posting and asking for our reactions, and this niggle is part of my reaction), through each of your subsequent posts you obviously started to realise that some of the pp were right, and that you shouldn't blame your DH for some of his earlier choices last night.
However, you couldn't get over the fact that your DH had put himself is so much danger by walking/staggering along that road last night, and if I knew that my DH was in so much danger I would be beside myself with worry, causing me to feel sick, maybe to even vomit with worry (a relative of mine died doing almost exactly the same thing, on a foggy road in the early hours of the morning - although he wasn't drunk, he was very upset after having a massive row with a different very close relative to him), and if he was my DH I would also have been very cross with him.
But I think that under the circumstances you told us about last night, if you accepted what pp said about him getting paralytic - that once you have had that one drink too many (and even if he usually goes out with his mates for 2 or 3 drinks quite regularly, all sorts of different things can make you not realise that you have already reached your limit alcohol wise, one being the amount and type of food you had eaten that day, or whether you might be coming down with a virus, or if you had had a shitty day at work, so your mind was already rather emotionally overloaded) - all your future decisions happen whilst still under the influence of alcohol, so unless you are bloomin' lucky your decisions may very well be absolutely stupid, and hughly dangerous ones.
So what I am trying to say OP is that my niggle is, IF you understood that he didn't intend to get so drunk, but that for one reason or another that he shouldn't be held completely responsible for (like the ones I mentioned above), then you would be being rather unfair to blame him for doing something spectacularly stupid after getting paralytic, because once anyone is unintentionally, but still legally, under the influence of too much alcohol, they shouldn't be blamed for their actions, as the drunk whoever he or she is, is no longer capable of making rational decisions.
Therefore in the case of your DH the only thing IMO that you would be fair to carry on being angry towards him for, would be if you felt that he didn't have any excuses to have that one extra drink that then caused him to lose his inhibitions, and behave ever more ridiculously stupidly as the evening wore on.
Thank goodness he luckily managed to get home safely with the help of the police, and hopefully any future such outings will be considered for more carefully, and he will be part of a group of real friends who all look out for each other, and don't let one of their group go off on his own.