How would you escape from the fenced-in compound?
Clare Headley, I think it was, said she had made arrangements to go to Wal-Mart to get new glasses - accompanied by a CoS escort of course. And when they got inside the store, she ran out to freedom thru a side door. But she had to wait several weeks just to be able to leave the compound to go to the Wal-Mart.
I think another effective way to flee (besides just walking out, which seems like they'd make it very difficult for you to do, especially if you didn't have someone waiting for you outside the gates) would be to pretend to have chest pains or some other symptom of what could be a life-threatening emergency, urge them to get you to an ER immediately, and then make a run for it once you got there.
You'd be declared an SP at that point, but at least you'd be free.