Go into every store with your mask off. Carry it and if you're given a hard time, put it on. But make them ask. Every. Time. Make it exhausting for them to carry on the facade instead of just being an easily managed sheep.

Then, take your mask off (or let it accidentally drop) after you make your purchase at the cash register. That's were their leverage on the situation ends. Sure, I'll comply long enough to get food, but once the transaction is complete...fuck this bullshit.