No go in Tustin, CA. Proof attached...
Ah, it must be everyone's Costco, BUT yours.
Though the sale sign is not in your store or photo, did you bother to ask? I mean, I could take a picture of the same sign in my Costco. More specifically, The sign is the same at my Costco, they did not change it to reflect the instant rebate. They had another sign next to it advertising the sale.