Have you considered calling the hotel directly? if the have a concierge, they may arrange to have a car pick you up. The full service Marriott's do this for me and here are some advatages:
Typically, the same price as a taxi.
No wait in line like most airports
Billed to your room
Usually, I do the same thing on the return to the airport. I do not blame you on not wanting a rental car, any more I only get them when I absolutly need one, and usually have Enterprise or Hertz bring the car to the hotel.
Good luck! Sounds like a great trip.