Girls, ever been on a long road trip and were desperate to pee and there were no bathrooms nearby?

The other day we went for a drive on the Blueridge Parkway. What a beautiful drive, however, very few rest stops. I think maybe only 2 have those portable toilets. Anyway, I was really desparate for a pee and knew there were not any toilets around. So, when we got to one of the overlook spots, I just took a nice long walk down a trail and popped a squat behind some trees. I am curious if any other ladies have some good stories of desparation?
Girls, ever been on a long road trip and were desperate to pee and there were no bathrooms nearby?
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