Heh that's pretty cool. I wouldnt really care about that privacy invasion. It's only bad for the people who got something wrong with them, or do shit that embarrases them. I could just call the pizza place, say 2 pizza's please and hang up, that's fast.

You would get a black market for all kinds of legal stuff, just so you dont get cought buying anything weird. Like...dildo's and blow up dolls...