Family Dollar complaint: Masks Required

On Friday November 27, 2020 I was shopping at your store located at
9730 St. Charles Rock Road in Breckenridge Hills, MO. As I was looking at some items I heard someone sniffling several times, then blowing their nose.
I turned around and observed the lady who did not have a mask. I mentioned to her that she should put her mask on. She said she did not have a mask.
I then went to speak to a store employee and expressed my concern that the customer was not wearing a mask. The store employee informed me that they could do nothing about anyone not wearing a mask in the store. I said there is a sign on the door that states “mask required to enter tore”. She said that the corporate office has told them they cannot turn anyone away or make them leave if they do not wear a mask because it is not a law. Also, the female employee I spoke with was pregnant.