A Pennsylvania man was busted for impersonating a Department of Homeland Security officer and ordering a Walmart shopper to wear a mask at gunpoint, authorities said.

Michael Baglio, 72, faces charges of impersonating a public servant and making terroristic threats with intent to terrorize over the May 17 shopping incident in Cambria Township, according to a report Monday from news station WJAC.

A shopper told police that on the day in question, she took off her mask for a minute because she was having trouble breathing at the shopping center — and was then approached by an older man.

The guy claimed he was with the Department of Homeland Security, then brandished a gun and told her that “it would be in your best interest if you wore a mask,” police said.

The man then told a manager that he had shown a customer his gun and told them to put on a mask, WJAC reported. He also left his business card with the supervisor.

Baglio is set to be arraigned on the charges Oct. 26.