I'm sure that even in The Great State Of Texas, the Coca-cola company will slap a fine on a company that sells you Pepsi when you ask for a coke.
There are a couple of well known universities here in Atlanta that Coke has their wallets invested in. One of them is in the shadow of Mount Coke-dor. At that one, there is a food court sized national pizza company restaurant on campus. They normally sell only Pepsi products since ... well, PepsiCo owns them. Not this one... Coke only. All of the latest & greatest innovative dispensing machines can be found here too. All of them carrying various flavors of Coke... water flavored coke, sports drink flavored coke, coke flavored coke, etc...