Police in Quakertown Borough say back on August 11, Justin Underdown, 24, used an auctioned police car, with a working lightbar, to pull a woman over on Route 309.
The woman told police he touched himself during the fake traffic stop.
Two days later, Underdown allegedly exposed himself to another woman while at a traffic light on Route 309.
He has been charged with impersonating a public servant and indecent exposure.