Well, I am disputing it and see where we go from there. A quick google and you will find that Hertz has a pretty bad reputation for this sort of scam long after the rental period when people are not taking the additional insurances they punt.
seriously , you are going to to tell them to eff of right ?
It's usually cost me about £40 to drop a hire car off at a different airport/location than the one I collected the car from, but I have often been upgraded to a high spec car for the whole higher period, I normally higher small cars like a fiesta, and have had Audi Q5, mercs and others like them, and they all returned good mpg at a steady 70mph down the motorway. I also have yearly excess insurance for all of Europe and the UK. I also rent a car from malaga Airport and get the cheapest deals I can (usually through the airline I fly with) the hire car is classed as an older, high mileage and a bit battered and cost about £60 or less for a week, I've had several new cars (delivery miles on the clock) VW, Renault, Ford's and skodas, and when they offer me extra insurance at the hire desk, I always say with a slightly raised voice "I hire lots of vehicles every year and have private excess insurance" that shuts them up with the fear facture they were about to spout on about, as they don't want everyone to know about the el cheapo insurance, as they want to be ripping of the next people in the line.
Dont think they have a drop off Hertz depot at your local dump
This is really smart, now you pay 1 £ to move their cars around, which otherwise would have been paid-for job :D