I'm sorry you're going through this. I learned a few things when my BF would get in my face. If he gets arrested, it is not my job to pick him up from jail. How may other victims of crime chauffer their attackers? Just because it's your husband doesn't make you any less of a victim in this situation. Violence is violence. My BF also tried the at home breathalizer test, I refused to use it. It's not my job to monitor his use, it's his. You didn't need a breathalizer to know he was drinking this last time. Also, you can't really "request" that he be put on a medication. In AlAnon that would be viewed as trying to control his recovery. I know it's hard, but the best thing you can do is detach and let the court and your spouse work it out.
Keep detached, don't listen to his attempts to pull you back in. Keep going to AlAnon. Most of all, do whatever you have to do in order to stay safe.