Hear! Hear!
This is a massive missed opportunity for Tesla. ALL roadside rest stops should have superchargers, or at least all superchargers on freeways should be at rest stops. People are stopping there anyway, there is usually ample parking, in Ontario (and some other places), there are often gas stations and food vendors, tourism info, etc.
How could governments say no if Tesla came calling and said let us put a supercharger at your location?
I suppose it's possible that some governments would get push back because that favours one brand of electric car, but that's a trivial fix: just put in a few chademo / CCS chargers too.
Hell, I bet Tesla would even foot the bill for the equipment, given their corporate mission.
If you look around there are a fair number of superchargers that are at rest stops. I have noticed though, that the ones in NJ that are at rest stops on the turnpike are far less popular than the one thats a few miles off the turnpike, but at a nice shopping center where there is alot to eat and do while your car is charging.