Booking photo of Gregory SumterA road rage incident turned into an arrest for impersonating a police officer on a Walmart parking lot in Catonsville Tuesday evening.

Gregory Sumter (57) of the 7300 block of Kathydale Road, 21207 was arrested after police were called to the 6200 block of Baltimore National Pike for a weapons incident around 7:20 p.m. What started as a road rage incident in the parking lot escalated when Sumter produced a badge and gun, identifying himself as a police officer.

The victim honked her horn at Sumter when she attempted to enter the parking lot but Sumter's truck was blocking the access road. She eventually drove around his truck and parked her car on the parking lot. Sumter followed her and stopped behind her vehicle, blocking her egress. Sumter identified himself as an officer and produced a silver badge, then threatened the victim and her children, displaying a handgun.

An officer working uniformed secondary employment at Walmart spoke with Sumter, who denied the allegations, but witnesses confirmed the victim's account of events. A Special Police State of Maryland badge and a loaded revolver were recovered and confiscated. Sumter later stated he was retired Special Police and did not return his badge upon retiring.

Sumter was arrested and charged with first degree assault, use of a firearm in the commission of a felony, carrying a loaded handgun in a vehicle, and impersonating a police officer. He is held without bond pending a bail review hearing later today.