Oh, I thought they were national - really? Yup, in NYS. Like Denny's, kind of.
Known for walk-up ice cream window, hamburg meals with "Happy Endings" sundaes, late-night coffee place, greasy French fries, etc. ) They also sell half-gallons of ice cream at the restaurant.
If it's any consolation, it was a tiny scoop, and the chocolate sprinkles I put on it completely ruined it ( Usually good ice cream though.