This just happened to me ...
My insurance paid for me to get a rental while my vehicle was being fixed. We walked the car beforehand for "damage larger than a thumbprint" and found nothing. A week later (on a Friday), I turned the rental in to another Enterprise. We walked the vehicle to look for damage, and we - again - found nothing.
Today, Monday, the Enterprise representative called me saying he missed a ding on the passenger side door, and that I would be responsible.
Isn't that insane? We walked the vehicle upon turn in on Friday and all was well ... now on Monday there is a scratch and I'm at fault.
What should I do????