I'm an Oregon pede too

I only shop a couple of times a month, but what has worked for me so far is wearing a tiny paper paint mask. It's so small, it doesn't cover my nose, and I don't breathe through it. It's a show mask. Which is all they want.

I don't like confrontation, but if anyone bothers me, as a gimpy old lady I can shriek like a banshee, act crazy and/or cry on command. Or whack them with my cane.