I had a similar thing happen to me the other day. I went to buy a SharkBite fitting and 20" stainless steel hose. When I got to the cashier, the fitting rang up and the hose said "Invalid UPC." She said, "Well, the hose isn't coming up, so it's yours." I tried to argue with her that I would go get the HD product number and she said it would show up the next time because the register alerts HD when that happens. I was SO appreciative.