This doesn't make any sense. When I reserve a rental car at Signature or any other FBO, I may or may not give my tail number, but I'm pretty sure that no one has ever checked. I could have arrived in the front door and rented the car. (No one does this, because the cars are more expensive rented this way than from a typical rental desk as the FBO takes a cut and sometimes the airport adds a cut as well.)
This sounds like Hertz just blew it or Signature didn't want to rent a car one-way to this guy and fobbed it off on Hertz.
[0] - FBO -> Fixed Base Operator, basically a service station for private aircraft (whether charters or not; most are not).
Is this current knowledge? I used to pick up one way rental cars from the airport but the last few times I tried ~5 years ago the clerk wanted a flight number. I didn’t bother to lie.
I don’t rent one way rentals from an FBO (because I have to come back and fly the plane home anyway), but when I do reserve local rentals for a trip, I give times but not tail number generally. That’s all current.
This sounds like Hertz just blew it or Signature didn't want to rent a car one-way to this guy and fobbed it off on Hertz.
[0] - FBO -> Fixed Base Operator, basically a service station for private aircraft (whether charters or not; most are not).