What you are hearing is the QUACK QUACK QUACK of addiction. He is STILL trying to MANIPULATE you to his world.
I am glad you stood by your boundaries and said NO. I would also suggest, although it will be VERY HARD that should he show up at your door, you NOT let him enter. No admittance. This would be another CONSEQUENCE of his erroneous actions in violating your boundary.
He's playing them, and THEY KNOW IT that is why they called. A lot of the 'counelors' that work in rehabs are recovering themselves, and have great BS detectors. Sounds like yours is working pretty good too.
Enjoy your folks visit, as much as you can, and leave SO to the counselors.
Don't forget your Al-Anon meetings, lol
Thanks for letting us know how YOU are doing, we do care so much.
GOOD JOB!!!!!
Love and hugs,