. >> reporter: at the dairy queen in moorhead, minnesota, they've made a declaration of independence.hey still serve the stuff the corporation put an end to. like the dearly departed raspberry soda or the oh, so awesome banana supreme. troy de leon and his wife, diane, bought the business 20 years ago from the people who started up here in 1949. their old contract allows them to flout authority. do you get any blowback from corporate headquarters? >> um, we haven't yet, no. >> reporter: troy says, if they did come by, they might learn a thing or two. >> they'd see how to run a business. >> reporter: from march to october, there's almost always a line. the portions tend to be larger and the prices cheaper than the corporate stores. regulars say the ice cream is better, too. >> this is good stuff. >> reporter: and august may be the best because ice cream with peaches, peeled by hand when the good ones come in from colorado. when you taste that, what do you taste? >> tradition. >> reporter: here they double down on minnesota nice, and the customers come back again and again. >> people ca