probably not. Besides from manually searching through a paper atlas, it's hard to find them online. There must be hundreds. The best advice would just to keep their eyes peeled at the signs and when they see rest stop-4 miles, start getting in the right lane. I know it might be helpful knowing exactly where they are to plan out stops, but keep in mind you don't have to stop at a dedicated rest stop, you can also just stop at a McDonalds to use the restroom, stretch your legs, and get a bottle of water.
What car are they taking?
Best of luck

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