Nice to meet you Prize, welcome to SR!! I would suggest you read the post up on the Substance Abuse and Suboxone detox, and even post up there too. from what I've read up there, detoxing from suboxone takes a long time, much longer that detoxing from street opiates. He will need to stay longer. ANd also he has to address the issues that got him into drugs in the first place, and learn tools to keep away from drugs. ANd he has to do all of this by himself, for himself, becaause you cant control his addiction. Not going to pick him up is a healthy boundary. Come here often for support.
I can totally relate to your situation with your parents - one of my husband's nephews is gay. The guy's parents are cool with it, but Grandma and Granpa (in their 80's) are so dyed in the wool conservative, he moved to another continent!! Being Gay is not an issue here (or Black, or Spanish, or Left-handed, or....)