I have overnighted in a few. I didn't like it.
Both truck stops, and Pilot stations.
If you open a slide for comfort to move around at night ( bathroom ), you are constantly worried that that the next truck to pull in next to you is going to hit it.
i don't know what is worse,the trucks coming and going all night,along with with the changing noise level, or the constant roar of a big diesel engine next to you.
I would rather pay $40 for a quiet campsite, and wake up rested..