There's a in Maryland just across the border from Pennsylvania on 11/15 North.
In the early 1980s Pennsylvania raised its drinking age to 21 before Maryland did, so people would cross the border, buy beer and the like, and head back.
Of course the Pennsylvania State Police would look for that, so they'd nail the kids with the liquor just after they crossed back into PA.
It quickly became a game of cat and mouse, and more than once the trooper pulled over a car with teenagers who had a severe hankering for Maryland Slim Jims while the liquor car picked up the beer and headed for one of the many other roads that crossed back into Pennsylvania.