Maybe leave a note saying “$x just ain’t worth it”
And walk out but only do this if you have a backup.
Make sure you have enough for groceries too, better yet, start a garden, fuck it, start a garden so big you invite your neighbors to do the same in their yards.
Now you’ll end up with a community of people who don’t rely on these mega corporations for food.
That’ll show them.
Hit them in their wallets where it hurts.