Free Regular Fry with any purchase – FRYMICH – FRYMICH
$ 5 off $ 30+ – 5FMICH – 5FMICH
Both codes expire on 5/31/23
Not sure why its only Michigan stores, but you might be able to try changing the MICH part at the end to something for your state to see if it works in other states. It could be that Wingstop is a sponsor for the Detroit Pistons too as the bag seal sticker on my order today mentioned the Pistons.