Go to San Jose or Sonoma or somewhere near but far enough away from SF so that you don't know where to score.

Go to a hospital that you've never been before.

Tell them you are a threat to yourself and others.

Then when they've 5150'd you, tell them you're willing to do ANYTHING to stop using.

I cannot believe they wouldn't hold you.

It's too easy for you in SF.....make it almost IMPOSSIBLE for you to score.