Once they get out of the doors, nothing is stopping them! However, they will need to find a way or plan a way to get through the enforcers who are standing at every door. They are fairly large, imposing figures, and are watching the immediate vicinity around each door. If you want to fight them, it will be fairly challenging - they are of significant size, and strength, and will also have tasers on them to subdue anyone who might give them too much trouble. But it is possible.

However, once you get beyond them, there doesn't seem to be backup! You may have others chasing you down once you get out and around. So you'll want to move quickly.