Something similar happened to a dude Kevin and I knew back in Ithaca. He's working at Taco Bell, and a car pulls into his mezzanine, through a glass wall. Guy gets out and orders a taco. Needless to say, the man gets his taco. The cops show up to take care of things before he's done.
911 call went something like this:
Smilner: "Hi, there's a car in my mezzanine."
Operator: "There's a car in your mezzanine? Could you repeat that?"
Smilner: "Yes, there's a car in my mezzanine."
Operator: *muffled laughter*