I would think that if they could monitor which orders were being shipped where, they could also see that my $7.50 bottled water order was not a big screen tv and that the delivery address was to a disney resort and not a motel 6 on i-70.
I actually spoke to the supervisor at Costco and asked her if she realized how much money they would lose with this policy just from the "online community" that I belong to (meaning the Dis, but I didn't want to name drop) and her reply was, "Well I doubt if it is a significant amount, compared to our day to day sales numbers."
After hearing this I was in shock

<------this was the look on my face.
I politely informed her that I would let my fellow online community members know that Costco was not interested in their business and she said, "sounds great, thanks" and hung up!
I just thought you should all know how Costco thinks about it's customers.