Buc-ee's doesn't have tables, but it's because you aren't spending money when you're sitting down, not because they want you to leave. If you're standing, then you're probably walking around and looking around and buying a whole bunch of stuff.
Superchargers would be great, though. They are popping up all over the place and have plenty of room. It's easy to knock out 20-30 minutes in there without even realizing what's happening (especially if you need to walk a quarter mile from your car to the front door).