I have no idea about seniors citizens rules at Costco. I went shopping for thanksgiving and I was carrying around n my shopping cart heavy items, and he cashier was upset why I didn’t placed all my items on my he counter. She had 3 males helping her, but hey we’re talking about telephone brand name, same as he pictures came out. I told the cashier, I don’t work for Costco, she was thought it she was dong to me a favor, but I old her, I have coming to Costco since 1985, she was very arrogant. You should train them about how to treat a customer, is not for free, I pay for my membership $130 per year. Shame on this nasty attitude employed.