I saw this on their website about the promo that they are running. Not sure if it's new but I haven't seen it posted here.
The coupon is not unique so i'm posting it here. Doesn't seem to have any exclusions about a minimum or anything saying that this can only be used for Dine in. Should be able to get a free meal during lunch specials. And close to a free pie for dinner.
Link to where coupon was found:
Delaware, Florida, New Jersey, New York, Pennsylvania, Massachusetts, Rhode Island