I wouldn't be surprised that Costco would accept a return no matter what their policy says. I have NEVER seen Costco refuse to accept a return. Few months ago I saw a couple trying to return one of those (really neat) portable icemakers. They had no receipt, the box was dirty, torn, patched with duct tape. Costco person finally found that purchase in the computer, they bought it almost TWO YEARS ago. Soon as it popped up on the screen, they got their money back...