I love my Model S! I am continually impressed with how much thought has gone in to every aspect of the car. I also know others are similarly impressed. This evening the valet at an event I attended were so impressed they went for a joy ride. How do I know? The energy usage. I'm generally driving without massive spikes in energy usage. When the car was returned to me I was complimented on how nice it was. Then I noticed my rated miles were looking lower than I thought they should so I went to the energy view and it was clear they had taken the car on a VERY spirited drive. I suppose they might put down a deposit, but that isn't the point. A valet mode is something I never felt was critical until now. Not only could they have damaged the car (which would suck) they could kill someone or themselves driving like that. I didn't hold up a line of people to make a scene, but am honestly pissed off. I'm not even a little amused. As it turns out, this was the first time I've valeted the car. I truly never thought this would happen. More fool I. I'm just so glad no one got hurt and the car was returned intact. My wife thinks I should call the police. That seems a little far to me, but really, I'm still annoyed and don't think I'll be allowing the car to be valeted any time soon.