I guess I'm speaking from a Los Angeles perspective. Our stores are literally empty for most staples and any reduction in deliveries is going to make this an actual problem.

But that's not due to delivery disruption - nobody stopped the trucks, and nobody's planning to. It's due to people hoarding (either by panic or greed).

If groceries aren't back to normal in a week, I can easily see state troopers mobilized to guard every supermarket and make sure nobody buys twenty boxes of Bounty. Yes, it would look silly and would grate the nerve of free market enthusiasts, but in an emergency you go for effectiveness, not prettiness.

There's so much food people can reasonably hoard, so unless everyone has really large apartments or are stocking personal fallout shelters, if the disruption lasts longer than a week, it suggests the problem lies elsewhere. Possibilities include local supply chain disruption, or abundance of "entrepreneurs" keen to do arbitrage on staples.

How long has the panic shopping been going on? In Poland, when it started, it cleared out the basic long shelf life goods (rice, pasta, etc.) and TP from most of the cheaper stores for about two to three days. For some reason, some kinds of meat also disappeared. But it seems to be going back to normal now.

If after couple of days your stores are still empty of most staples, it suggests some serious problems higher up in the supply chain.