You are really in no different situation than before when you were preparing to go to court to get supervised visitation for your kids.
Try telling him NO, if that doesn't work, then go to court. Chances are he doesn't want his "drinking career" brought up in court.
BTW, I like you screen name, a sense of humor has gone a long way in keeping me kind of sane.
Good luck.
Thanks and God bless us all,
Coyote