I shoulda gone back in the day. But ... if I could have one fast food memory back from MI, it would be heading down to the A&W root bear in the parents’ Chevy Biscayne (Plum), pulling up to the order stand, and getting chili dogs & frosty cold root beer delivered on a tray hanging from Dad’s window.
(circa 1972-ish, I think. Must be getting old)
I'm still partial to Frisch's Big Boy from my days growing up in Cincinnati.