Originally Posted by noah

In my experience at most Hertz locations, a vehicle is a vehicle -- be it a convertible, SUV, minivan or exotic car -- where you are returning it doesn't really matter and I've never seen them say "Oh, you are doing a one-way to New York, lets get you a car from New York for that trip to get this car back there" or anything similar. Which is a long way of saying that hoping for a deal on a car, be it a convertible or otherwise, by doing a one-way is a pipe dream. If you want a convertible you're going to need to find a location that has them in inventory for reservations. OR, if that fails, hope when you reserve a regular car you can find one when you arrive and get out without too great an up charge.. Personally I find the reality of a convertible quite different from the dream - they're windy, make conversation difficult, takes extra time to raise and lower the top when making stops etc. If there is one on the PC aisle and I"m somewhere I would enjoy it then I might select one, but I'm not going to spend $50 a day extra to drive one.

The larger the airport the larger the fleet, generally speaking. JFK, Newark, Dulles, Philly and RDU off the top of my head given the states you listed are the places I'd look for cars that can be reserved without tops, or are most likely to have one around if you arrive with a regular reservation.