The Jitter Bug is right across the street from the C.O. in downtown Ringgold. The owner, Roger, is cousins with one of my friends who works at the phone company too. We donated a DSL line there and a wireless router so there's free wireless Internet access there too. I've been there a few times, I'm sure he'd love for us to have a cruise-in.
They do serve other drinks like Cokes and root beer, too.