Carrie seems like the least likely person to road trip anywhere. Her holidays have been Disney, Disney, Disney, resort, resort, Icelandic resort with planned outings. And Rome, where they did the Colosseum and then ate their way around! She is so unadventurous. Look how they reacted when their day in Paris (the captial of France!!!) didn't go to plan. How would they cope with traffic/diversions/enjoying a place and not wanting to leave?! They'd be demanding dividends from every state they crossed!!
Walking around Epcot is the closest she'll get to a road trip!!