Dancer double coverage on their face

Got a table-side dance today at Rick's Cabaret in Minneapolis. The dancer had a cloth mask on the whole time we chatted. Then when she danced...her top came off but a face shield went on her head while she was still wearing the mask.

The club had been shutdown for a few days a couple weeks ago because of a positive test reported by someone working there. I'm wondering if it was her. No other dancers were double covered. I quit after just one dance. Way too weird.

I might be all wrong about this,...just conjecture on my part. But do club's owe an alert to customers about workers who've tested positive for Covid?