Well, you must follow your instincts I guess, and pray that this will be a turning point for him. Do protect yourself and remember that you didn't cause this and can't control it.
As for my son, he's decided to get a title loan on his truck to raise bail money. I'll have no part in it... he has a friend who is arranging it for him. Wouldn't have been my choice, but I have no control over the situation and won't interfere. My thoughts are that by the time the 30 days have nearly come to pass that his title loan will be due in full... he'll come to me and ask for the money. Which of course I WILL NOT provide.
The path to the bottom is rocky and miserable, as is the climb up - but so well worth it for those who manage to pull their lives together!
I wish you peace.