In reply to yohan:
As a precaution, if you ever intend to drop off a hire car in a different location, thoroughly check the car more than is usual, both inside & out, preferably in daylight & before you leave the depot!
Had a huge problem doing this in the UK & was reliably informed after being hit for additional damage expenses that I most definitely did not inflict on the car, that unscrupulous depot managers unload their worst cars on to you so as to get rid of problem cars.
This obviously is the easy way of shifting the problem to another depot & another manager within the company.......