It could have been worse than that...he likely saved BOTH of their lives. How often are these restaurants robbed and the scenario of marching the employees to the cooler results in them being discovered dead there later.
I know of one restaurant in Memphis, TN that has an alarm button in the cooler that connects to the police. They kept getting robbed at closing; strangely, after they stopped using work-release prisoners to wash dishes, the robberies slowed drastically. I had a couple of friends work there at different times.
Dead Bears, the only good kind.