You can ask to attend alternatives to AA. I heard SMART recovery do sign court slips too. I don't know if Al Anon does but I feel that's probably the place (if any) you should be mandated to.
Since you are not an alcoholic, you might want to take the alternative they gave you to meetings which is a couple of days in jail and put that mess behind you.
I ve been in jail before (for civil disobedience) and it's really not that bad. Only problem with that is that it will stay on your record and might make find decent employment or housing difficult in the future.
You made a bad decision when you got into a car with someone who was intoxicated and sometimes we have to pay the price for our mistakes. Be grateful that those are the only consequences (and something tells me that it 's not the first time you ve been in the car with him when he was drunk), you could have woken up in the ER.