Personally, I think they'll be fine for 3-4 days. Mine were!

When we moved from Texas to Arizona, my fiance's company paid for a moving service to move all of our stuff. So I packed most of the critters tupperware containers and had a spray bottle to mist everyone down. The animals that came with us included a Shih Tzu, a Green Cheek Conure, 5 bearded dragons (most of these guys were in small dog carriers), 3 chameleons, 2 leopard geckos, and 12 snakes. We drove to Arizona in one straight shot in 15 hours. The plan was to stay in a hotel one night until our stuff arrived the next day. Well our landlords-to-be decided they couldn't afford to have renters, so they backed out on the deal. So we were now homeless in a brand new state with our stuff on a truck somewhere. Very scary! Took us 3 days to find a new house and finalize all of the paperwork. I ended up buying some worms at a Petco nearby to feed the lizards. But every day I would open up each animal mist it down lightly. I also had spare paper towels with me in case anyone needed a cleaning. Only 2 did.

But everyone made it! Just make sure everyone is getting air and they'll be fine. During stops, I would just open up each one quickly (most big truck stops have places to the side to park to let your dogs out) and mist as needed. You'll be fine.