Yes, talk to the store managers, one chain store in my area marks the dog food down when it is approaching the expiration date.
However, if it doesn’t sell right away, they donate it to a local shelter as a tax write-off. Stores cannot sell or donate food (including dog food) if it is beyond the expiration date (even though it is probably fine for a few months more).
So, maybe you could negotiate an arrangement. Offer to deliver the food to the shelter…or something.
Otherwise they have to throw it away/discard it.
