It's not a great situation either way. You can get a lawyer or not that is up to you. The bigger issue is what do you think you can do differently next time this happens? Your mind WAS working in the right direction for a bit. Maybe have a few numbers in your phone of people you can call? I have even told people the truth. "I am in recovery and do not drink" or even say you are allergic to alcohol. Just need to have a plan in place when this happens again.