Better Escape Plan
OK, having appeared on TV and been identified, it was obvious that Sonny's goose was cooked. He was NOT going to escape. But nobody had seen Sal except the hostages. So Sal had a chance to escape if they planned it right.
1) Sal takes scissors and cuts all his hair off.
2) Put a face mask on Sal so he is not identifiable by the cops and tv.
2) All get in the car/van as they did.
3) After traveling a few blocks, order the FBI Agent driver out of the car.
4) Let the FBI know that if they follow you will kill hostages, then drive away from the motorcade down some side street.
5) Drive by a crowded subway station and have Sal bolt for the station.
6) Stop the car, and Sonny puts his hands up and surrenders.
What would Sal's odds of escaping have been?