Definitely a mega grocery store. Just have to secure all those entry points and loading docks, but it would last you at the minimum a couple of months. Most stocked canned food are 2-3 years out from expiring, so if you have enough of them in the store, you can last that long assuming the building is secure the entire time.
Probably a Walmart. Lots of guns, food and medicine.
Yeah if there is power, no contest. Especially in the southern USA where they sell guns and ammo. You could honestly last years there alone.
Definitely a mega grocery store. Just have to secure all those entry points and loading docks, but it would last you at the minimum a couple of months. Most stocked canned food are 2-3 years out from expiring, so if you have enough of them in the store, you can last that long assuming the building is secure the entire time.