Caledonia police say a sexual assault suspect left a grocery store Wednesday before their officer arrived.  A 16-year-old worker at the Pick ‘n’ Save tells investigators a man asked her for help in the store’s produce section.  When she tried to help him, the teen says he touched her private area.  A supervisor was informed, but the man quickly left the store.  Police say they are looking for a Hispanic man, wearing a black jacket, a dark hoodie, dark pants and blue tennis shoes.