I hear you on keeping our humanity, and that is presumably the basis of the anti-price-gouging measures in the first place, and those are, at absolute worst, probably not going to do any harm. Still in an uncanny way, I think a "free market" (asterisk, disclaimer, footnotes 1 through n) actually would handle a situation like this fairly effectively. After all, TP that costs more is less likely to be hoarded, and less likely to be an attractive "buy low / sell high" arbitrage (because it's not "low"). Part of the effect of a higher price is less buying (demand). I mean it makes a certain amount of sense.
And I have one anecdatum: I was going to buy TP myself -- not because I hear "pandemic" and my thoughts immediately turn to my anus, but simply because it was getting to be time to reorder the ol' 48-roll brick. But because of this situation, my usual seller was out of stock, and everyone else was in fact, price gouging. So I'm just going to wait. I'll wipe my ass with my hand before I pay those prices. That's the thing, we're not talking penicillin here - you could permanently do without TP. I'll spare you the specific details of how. But one of the things you would need is bleach, which come to think of it, is probably also covered under this anti-price-gouging order, so hey, thumbs-up emoji!