Car rental at Frankfurt-Hahn Airport

Drop off not clear

Cons: Drop of was not clear. All the other rental cars were in one lot and no sign to tell you hertz was in a different lot. Once at the right parking lot (2km away), the signs were not clear where to park or where to catch the bus. No one checked the car or gave any receipt that the car was returned. At the airport, the guy was shocked That I wanted a receipt & wouldn't give me one. What if a worker took the car?- best case, they use my gas, worse case they wreck the car or leave it in another city & I get blamed.