Stayed in one a few years ago on Interestate 90 believe it was Indiana or Illinois, $12.00 for the night. Most states are very very resistant to offering that because of liability and it takes away from the local economy (local camp grounds and restaurants). I don't ever seeing it becoming popular because of these factors. In our area, Walmarts are off limits to overnighting, and its because it is a town ordinance which was influenced by the local campgrounds.
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