I was waiting for my safety check to be done about 12 N. I was wearing a mask, but when I was sitting on the massage chair, I started to snack on some nuts; remained sitting more than 6 ft. away from everyone. A man named , Jack, walked up to me & told me in an inpolite condescending tone that I must have my mask on. I told him at lunchtime I was eating nuts & he continued to say there is a sign on the door re mask wearing, exerting his authority. I replaced my mask after I finished eating. How do you wear a mask where U are eating? I told Manny about his rudeness. I've serviced my car at the Pearlridge for many years. Freddie & Manny were good about my safety check.