Amerika has 120 guns per 100 people, second place is 50 guns per 100 people in yemen, IF the shtf, it's gonna get ugly real quick.
14 days at the outside and the cities have burned.
Should be mostly settled by week 6 of the trucks not running.

So, I wouldn't expect that 'they', those currently in a position to pull the plug, want to allow things to go there, it's their stuff that is going to get burned and their hides that will hang from the lamp posts.
Maybe they can't avoid it, but I bet they can.
Few in the crowd want it, the crowd mostly just wants to be left alone to their steel belted radial tires and microwave ovens.
There aren't enough agitators to get things going without help from those in crucial power positions.

In any event, there isn't much anyone with no real power can do.
It's very real that you don't have to stock up food, if you can take it from those that do/did.