So here's a solution.
When driving you can use similar packaging as if they were being shipped, or snake bags (use a breathable pillow case as substitute), this is good for two (2) things, 1. It makes everything compact if there's limited space, 2. Keeping them out of sight even when moving into a hotel or motel (looks like luggage ), travel with tubs which they can be transferred into when you stop for the night, this makes for a fast portable setup.

Hydration is important since you'd want to also refrain from feeding unless absolutely necessary.