When I take my car in for a service I expect to ge...

When I take my car in for a service I expect to get it back clean ESPECIALLY when it is written on the service appointment confirmation letter that the car will be washed! This is one of my biggest pet peeves! I drive a Mercedes that costs $75K I expect white glove treatment for all service aspects and get a clean car back after a service. I expressed this when I picked up my car but had zero follow-up. VERY DISAPPOINTED!