Here I see a few hot spots where an "a symptom" has been in contact with a number of others -- almost exclusively at tight work -- and that is in the shipyards here. Close quarters. They such some down. Quarantine, sanitize, etc.
While there are shortages and empty shelves, a lot has to do with where the store happens to be -- i.e close to housing, apartments, or country farms, etc. Of course, paper products, then sugar, flour, yeast, breads, potted meats cheeses and raw meats are most common. Some areas -- milk & eggs go very fast.
The more we hear about food issues, the more I see things being hoarded. It's a fear & prep for worse to come and it is coming. Prices are going up -- well, in a sneaky way -- same price, less quantity. Availability WILL become more of an issue, in a few months.
GROW -- CAN, FREEZE, DEHYDRATE. You will be thankful you did. Most of us already do but, increase. Not a fear, a fact.
Only National Guard activity I've seen has been to assist with food movement, temporary hospital &/or testing site set ups, temp food bank handing out to drive-by, etc. Just being used as many volunteers can't/won't be able to in numbers needed. I've seen nothing that contains weapons or takeovers.....some crowd monitoring in the sense of directions with signs, barricades, etc. All calm & helpful to date. Even some truckloads of food packages to outlying areas.