IMHO, if he can't go to a bar/club for a couple of hours without feeling compromised how in the world does he think he is going to get thru a whole week of shenanigans???
He is an adult man, he gets to choose for himself, he is either confident that he will be ok, or he is getting to dive into a beer float.......
When I quit smoking I avoid things that trigger me to smoke, that is just common sense for me.