In Memoriam, FlyerTalk Evangelist
Join Date: Jul 2002
Location: Durham, NC (RDU/GSO/CLT)
Programs: AA EXP/MM, DL GM, UA Platinum, HH DIA, Hyatt Explorist, IHG Platinum, Marriott Titanium, Hertz PC
Posts: 33,857
I'd keep trying to get a hold of them but if you can't, you can always call day of and say your flight got delayed and you'll now be arriving at 10:30 PM. Christmas Eve is not a time they are prone to run out of cars either so you should be okay. Hope it works out!