Its been at Mills Fleet Farm in Minnesota for at least six months now (at least the one in Lakeville that I shop at!) Like JonS posted, 4.99 a qt for the XL7500 formulation.
Rifles in grocery stores? Only the ones that sell all sorts of sporting goods too - like Holiday used to do before things split into Gander Mountain and the grocery end was sold off to cub.
My favorite is the Live Bait in the grocery stores - better make sure that styrofoam container is really coffee and not some leeches before drinking!
'Kule - only move here if you like high taxes, long winters, and if you like guns, it better be outside of the Twin Cities where guns aren't "PC".