Personal Shopper at GIANT EAGLE

Ok, this is like my dream come true. I walked into the Giant Eagle on Centre Ave, you know the one... all billboards are calling it the "Market District" Giant Eagle... its a super fancy grocery store that gets to charge an extra dollar for macaroni and cheese. ANYWAY... I walk in and they have this panel of hand-held scanners on the wall... I am draw to this display like flies to my dog's shit and I have to find out what is going on. So I watch the little info-merical they have playing on a LCD screen in the middle of all of these devices. Apparently, you can fill your cart with empty bags and walk around the grocery store and scan and bag everything right then and never have to "check-out". You have a little screen on the scan-gun that lets you see the running total and if you have an coupons, you can scan them too! WOW! This is the grocery store of the future... only.. now. So I go about my shopping and get all of things that I wanted to buy and of course a few extra things, because I shopped when I was hungry... All the while, my little scanner was telling me how much I was spending. So when I was done getting everything I needed, I was a little perplexed on how I go about paying for everything... After all, I had all of my groceries bagged up already, I could just waltz right out of the store. But I am honest and I guess I looked like a lost dog, because this energetic young woman with horrible garlic breath asked me if I needed help and I told her I was done, while showing her the scanner in my hand... She told me to follow her and we down to the last lane which is just a little stand with a screen.. you scan your "Giant Eagle Advantage Card" and it brings up everything you've purchased and I paid my bill... Wow that was cool. All the while, my little brain is just wondering how in the heck does the Giant Eagle know that I've paid for everything in my bags!!! So I asked the girl who really was talking very close to me and serverely needed a tic tac how did they know that I paid for everything and she told me that they do a random scan of about every tenth customers who use the Scan-Gun system... And if the items they scan aren't on your receipt you get banned from the system!!! So like what if a small apple or something fell into my bag or someone stuck a can of soup in cart to try and set me up! No worry she said, you have TEN TRIES!!! So I have to have more than ten stolen items in my card to get banned! Jeez.... This seems like highway robbery. So really I'm guessing that if you are lucky enough to not get a random search and scan, which I believe could possibly be against my constitutional rights... I'll look into this later... Then you could skate out of there with hundreds of dollars of free groceries... We'll have to see if this system takes off. Discuss.