I've been to the Portillo's in Scottsdale a couple times and if you are in the mood for a Chicago style hot dog and bag of fries for under $5, it's a great deal. On Labor Day, I happened to park near the back of the store on my way to Fry's and so for the first time noticed this bit of decor. Hmm, maybe in Chicago, you are allowed to use the Great Seal of the State of Illinois to spruce up your hot dog stand and indeed, if they wanted to use the Great Seal of the State of Illinois to spruce up their hot dog stand in Scottsdale, I would have no problem with that. But the Great Seal of the State of Arizona is protected by statute and I'll check the statute again, but I don't remember seeing Hot Dog Stand decoration on the approved list. The Seal even has a Constitutionally established protector. My guess is that he's preparing a strongly worded letter...followed by a strongly worded injunction...while you read this.