Redstorm,
re your comments in quote marks:-
"I desperately hope he wakes up this morning and admits he did it and apologises for leaving the scene and misleading them. He needs to take ownership of this".
He won't take ownership of this, you will probably do that for him and that course of action will do you no good either. It will only further your own co-dependency here which is not healthy either.
"For those who asked, I didn't grow up with parents who drink but he did. His dad drives after having half a bottle of wine and thinks nothing of it. Husband is definitely of opinion that because he drinks a lot he can drive over the limit as he has a higher tolerance. Convenient how he admits to having a problem when it means he can drI've drink but not when I ask him to get help".
Not at all surprised he grew up with this; alcoholism can sometimes be a learnt behaviour. He is showing and telling you all the usual behaviours associated with a person in denial; alcoholics are often in denial about their own actions. You asking him to get help is a complete waste of time and effort; the only person who can do that is he and he alone. You can only help your own self here and talking to Al-anon would be a start.
He has to decide for his own self to get help; any coercion to do so from you or anyone else is doomed to failure. You cannot help him and (I mean this kindly) you're the last person who can help him. He does not want your help. He has previously refused to seek help and nothing has changed even now. He is nowhere near that point yet and may never be either; losing his licence won't itself make him address the root causes of his alcoholism. He could go onto lose everything and everyone around him and still continue to drink afterwards.
You have a choice re this man and your child does not. Is this really what you want for her going forward?. You're really just lurching from crisis to crisis here and she is also picking up on all this too. Your own recovery from his alcoholism will only properly start when you have completely removed yourself from the situation and off the merry go around.