Pacman is playing well as a DB and punt returner. What he does (legally) in his own time is his business. If the NFL went to prohibition of alcohol, 90% of the players wouldn't be able to play.
This alcohol ban for certain players is total BS. And in my opinion, illegal. Same standards for all players. Alcohol is ok in society, so it should also be in the NFL (of course, not during the game).
Do you think Michael Irvin would escape the commissioner's grasp if he were playing today? No way.
And Pacman's out just might be the ADA (Americans with Disability Act). Obviously, he has some sort of mental disorder. Get some shrink to confirm and Pacman is good to go.