Delmas the passenger in road rage incident

The Associated Press is reporting that Lions safety Louis Delmas was involved in a road rage incident in which the driver of the car he was a passenger in waived his (Delmas) gun.
Here is an excerpt from the AP article by way of FOXSports.com…
Canton Township Sgt. Mark Gajeski said Monday that 20-year-old Ravelle Sadler of Cincinnati was arrested about 2:15 a.m. on Dec. 21 after three people in another vehicle said they were threatened by the driver of a Nissan Titan in the Detroit suburb.
The Canton Police did not arrest Delmas however did seize his gun. Sadler however was booked on assault with a dangerous weapon and carrying a concealed weapon and is awaiting a January 18th trial date.
I never understood why people find it necessary to waive a gun during a road rage incident. It’s just plain idiotic.