This time I didn't bother going straight to customer service - I found an employee in the movie section and had them check the computer for stock on the Grindhouse S.E. (there were none anywhere on the floor), he checked at a kiosk computer and said it showed they have 14 in stock. I told him there aren't any anywhere on the floor, and could he please check the back and sure enough he brought out a copy for me.
I thanked him and took it, along with my online order/store pickup printout to customer service, the lady just checked to make sure the blu-ray title in the slipcase was the 'correct' one i.e. Grindhouse S.E., punched in my order number off my in store pick-up invoice, computer printed out the receipt, I signed a copy and that was it. She just told me "oh, next time you don't have to pull the item off the shelf, we do that for you with in store pick up orders...we act as your personal shoppers." LOL.
So if you're gonna try to score this 'deal' and the store has pulled Deathproof for you instead of Grindhouse, try my method of pulling a copy of Grindhouse S.E. off the shelves and taking it to customer service/in store pickup and presenting it along with your online order/in store pick up receipt. Depending on how badly you want this deal, you have a week (and multiple locations possibly) to keep trying and score! If you get denied, just take back your invoice and leave (if you feel uncomfortable tell 'em you left your wallet/ID in the car), DO NOT SIGN ANYTHING OR ACCEPT THE COPY OF DEATHPROOF.