I dunno... what do you hope to get out of visiting him the day after you practically had to tie him onto the roof of the car to get him out of the house? You're not going to be able to determine a darned thing at this stage of the game--he won't even be fully detoxed yet. To show your support for his recovery? You've been cheering him along all the way, as long as he was ostensibly making an effort, and even for a time after he quit even going through the motions. He KNOWS you support his recovery.
I think I'd leave him to his own devices for a while. Let him concentrate on what he needs to do. As much as you'd like for this to be a "team effort," in the end it is all up to him, and maybe it's time he realizes that. And maybe time for you to realize it, too.