A woman who was denied entry to a Dunedin supermarket responded by coughing on staff and abusing them.
Police say such behaviour is unacceptable given the Covid-19 outbreak.
Supermarkets in the city and around the country have introduced safety measures, such as limiting the number ofshoppers in store and offering protective equipment and hand sanitiser, during the level-four nationwide lockdown.
Senior Sergeant Craig Dinnissen said the 32-year-old woman was denied entry to a supermarket yesterday.
"She became upset and coughed on staff before becoming verbally abusive and filming staff," he said.
"She left in a vehicle and was stopped by police on the northern highway. [She was] trespassed and given a warning for disorderly behaviour," Dinnissen said.
"This type of behaviour is unacceptable and puts others at risk, causes stress and anxiety."