Honestly, I would rather stick my head in to the oven than order anything from Best Buy. I have had the worst customer service at our local ones. I pre-ordered my Google Chrome Book online.
I am sorry to hear you have had that experience. Our best buy is amazing. I have a suggestion. If the customer service at your local Best Buy is that bad, why don't you contact their corporate office and complain? Best Buy wants customers to be happy and I am sure they do not want one bad store, which probably means one bad store manager, to ruin your impression of them.