I took my time choosing a car rental, and now with the trip less than a month away - I think I've messed up. I've called the hotel concierge, and she quoted the same rates that Hertz is, which is 115 dollars a day. (She said they would book through Hertz since it's across the street.)
At this point, is that the best I can hope for if I don't want an airport rental? I've already got a great shuttle rate to and from the airport at only 20 dollars total.