Yes. It will suck. It's a consequence he has created. Back off and let HIM handle this.
I say this gently because I know it's hard to not fear the future. However, this is his last deal. He knows that, he is a grown adult. His actions got him to this place, now only his own actions can get him out of this place in his life, if that is what he chooses.
Basically, if he is serious about rehab, he will want to do all of those things anyways.
Hugs to you.