Haven’t seen any panic shopping in my area. OTOH I haven’t really been looking for it. My tentative theory is it’s mainly a blue state thing, a way of expressing TDS.
I’m in purple Florida, NW part which is red, and I would say that I have seen mild panic shopping here, at least compared to when a strong hurricane is in the area. It’s not at that level yet, from what I have seen.
Some things are missing from shelves, like my cat’s favorite food! I’m in deep trouble, I’ve failed her.