Technically I suppose any sort of photo I.D. will do. Have to test that one day. Of course if they refuse I will just leave and go elsewhere....and if i have a full cart at the time they can have the fun of putting everything back. But reading the article I can understand how a lot of people dislike the intrusion. One way to stymie them at the supermarket is to give them a phony phone number. They will take that instead of the store card they issue. Half the time when I have given them my number they call me by a name I never heard of anyway. Fighting “the machine” can be amusing at times.
Make sure the ice cream's at the bottom of the cart, when you do this! ;-P