Why does Cub Foods accept expired coupons?

I had the chance to visit with a woman who has worked closely with Cub Foods in the past. She shared with me that the reason Cub can accept expired coupons is because they own their own coupon clearinghouse which allows them to reimburse themselves for coupons. This answers the question as to whether Cub gets reimbursed for the expired coupons or not. This also explains why the cashiers at Cub never check the expiration date to see if it's within the 5 mo. period or not. One more piece of local shopping information to tuck away!