The coupons can ordered online (comes in about 3-4 days in the mail) and in your junk mail (PG insert with a bunch of their coupons)
It was good advice to bring the flyer to the store. The AAA batteries scanned correctly but they still wanted to charge me $21 for the AA’s.
After showing them the flyer they looked on the shelf for a bit and then finally called a manager to come do a price override. It is tough work being such a cheapskate!