Man gets sued for taking his vehicle for an oil change
So it appears that under Michigan law, if you let someone else drive your car (even if its a valet or person at a dealership), you're responsible for that person's negligence.
Well holy hell what a stupid-arse law that is. Are MI insurance premiums abnormally high? That's asinine that they didn't carve out an exception for when the person that assumes control of the car is a car-related business, e.g. a service location or a valet.