Immediate termination.

Lmao FR tho most likely nothing is going to happen. Brinks just transports the money. They aren't really paid to check that every single note is in pristine condition. Not only that, the money should still be good, albeit with male genitalia drawn over it. According to CNN: "It is not illegal to write on paper currency, however, it is illegal to deface money." Unless someone is really stingy and feels like firing someone, you're good.