He took a new mercedes right off the car lot and drove it.

Jeez

A Mercedes he paid for or rented obviously . Why only one key laying on the counter and why the editing from when he picks up the key to when he's outside infront of the Mercedes. What he should have done is hit the panic button an then looked around with the camera to find the car . And like dude says , he has keys to everything clearly this dude is rich as fuck an got bored with his money .