Dairy Queen is nonetheless very popular in the Lone Star State. With over 600 Texan locations — by far more than any state — the chain is known affectionately as the "Texas stop sign." ...
It remains well-connected to the identity of the brand today. Moreover, Dairy Queen remains known amongst Texans as the “Texas stop sign,” which says everything you need to know.
Dairy Queen wasn't founded in Texas but, thanks to these special, "Texas only" menu items, it may as well have been.