((((TIPPER)))) I pray that your h realizes what a destructive thing he's doing DWI. I don't think the cop did anyone any favors by letting him off with a warning.
And yes, all you can do is be patient and work on yourself and your life. You already know that you can't make him stop drinking, make him want to be with your family or move in with you. You can let him know (calmly) that you don't agree with the choices he is making, but that you love him. Maybe you should change the way you approach these subjects with him- insted of a discussion that leads to an argument, could you write him a letter? Try something different.