Rude Lady

On the 1st of June 2020, I was welcomed by a very rude lady at Pep Mokopane. There was no one at the door but it was open, so we walked in. The lady shouted "you don't just barge in, I'm sure it's not the first time you come to town since the lockdown started". How was I supposed to know if there's no one by the door? What happened to "sorry, please wait for someone to come sanitize your hands before you walk in"?