What would you do if a store employee secretly took a photo of your behind?

I was at my local grocery store today, wearing shorts(not that it should matter.)
The meat department associate who always goes out of his way to be (overly) friendly,snuck up out of nowhere and snapped a picture of my behind as I was slightly bending over. He might have thought he got away with it,but I knew. I silenced my instincts to say something.
When I told my husband,he thought I might want to report it to the store manager.
I shop at this store weekly and know a few of the associates by name,as I like to be kind.