About 7 years ago I had to move from Tuskegee, AL to Orlando, FL and it was quite a move. I had 4 chameleons at the time and they tolerated the 7 hour move quite easily (it might have been longer than 7 hours though). What I did was place them in large paperbags with plenty of shredded paper and a slightly moist paper towel at the bottom. I didn't moisten it too much to cause the paper bag to get wet abd break but enough to create a humidity reservoir since we were riding in an AC truck.
The animals simply arrived in their sleeping colors and a little miffed that they were waken up, but none for the worse. The chameleons were 3 Jacksons and one mean Panther.
Since your trip is much shorter, you shouldn't have any problems and you might not even need the moist paper towel.
Hope this helps,
Ivan