Damn! So how does that work. At our Costco they check everyone's membership card as they enter. They don't do that there? or is the alcohol in a different part/area that anyone can go into?
You just tell them you're there to just buy alcohol and then when you check out the won't even ask for a membership card if you've only got booze. I'm pretty sure that's the Costco policy across the board. I don't think it has to do with location, so there's a good chance that your local one does the same.