Whole Foods and photographs

Apparently, as a corporate, national policy, Whole Foods doesn't allow customers to take photographs in their stores. I happened to have my camera on me because we had been taking a walk previously, so was snapping a few photographs, just to see if I could get any interesting textures for use in an art project. I squeezed off about 10, as we filled up our cart, until we got to the fish counter. A manager came running up and quite rudely told me that my actions were forbidden. Puzzled, I asked why, and after a little hemming and hawing, the guy said for competitive reasons. I rolled my eyes, but sheathed my camera. In retrospect, either that was a made up reason, or Whole Foods management is fairly dense. If I really worked for Kroger or Wal-Mart, and wanted to sneak photos of Whole Foods produce layouts, for some unknown reason, why would I use a large SLR digital camera, with flash? Why wouldn't I use a tiny spy camera, or even a video camera concealed in a backpack? Oh well, here's what I managed to get pictures of.