If you have been run out of Wisconsin and were thinking you'd while away the day wandering through Colorado, implanting RFID chips in unsuspecting citizens, think again. Colorado has joined the aforementioned cheesy state to make it a misdemeanor to require chipping of individuals. See: Rocky Mountain News - Bill would nip chips in humans.
There are still a few states left that haven't abridged the right to chip.
Thanks to Objective Justice for the link.