I just want to reiterate that when the event happens, not if, but when, you have to remember that many large urban areas have limited access to food, because the urban dwellers make it impossible to profit.
Any of the ones that are present will have no more than 72 hours of stock for NORMAL sales, not a life or death rush on Spaghettios.
You absolutely do not want to be anywhere near one of these stores or any store. You will see the worst of humanity come out and if you think that the emergency services are going to keep order, you are fooling yourself. Like I have said before, the first firefighter shot will guarantee no fires put out. Once cops start getting shot, they too will go home or hunker down somewhere. The NG probably will not muster in the company and battalion strengths needed to carry out relief and in the urban areas, the armories may even come under attack by enterprising armed gangs.
You should have multiple paths out of the city. Highways will be choked with cars and tempers will flare.
Make friends with hunters who have land and think the way you do. They are already predisposed to self sufficiency anyway and you may have a place to cache supplies.
“Once cops start getting shot, they too will go home or hunker down somewhere. “
Actually, the cops have families, and they may not even wait until one of their own gets shot. Similar to New Orleans, with the school buses - yea, lots of buses, and lots of people needing rides. But guess what, the drivers have higher priorities than carting around total strangers. In that case, the thing to do would have been to fly in drivers from Tennessee and other states far away from the hurricane, and give them a map.