Pay tables on the VP must have been really bad. I only saw one person playing and I think he was already there!
Seriously, this scary. Not only do they get away with a large haul, chances of getting caught are close to nill. You can't expect a clerk to react for fear of getting shot or beat to death. Chances of the police capturing any of them is also a longshot unless one of them is known to police.
Good Luck!
Ric at Joes