I don't think you'll need the UV filter, but depending on the time of day and your angle to the sun, the polarizer could prove useful. I'd take it along just in case. You might find a gorillapod handy if you could find a place to attach it.
That would be one time that I wouldn't spend a lot of time on photography. The Sedona area is so beautiful, I think I'd just enjoy the sights and the ride.
Have a great trip, Suzanne and Welcome to the forum!