The Port St. Lucie Police Department released footage Thursday showing a driver getting out of a Mercedes-Benz and walking up to a couple in a pickup truck with a gun in hand. The man, who police say is 63-year-old Paul Slane, appears to point the firearm at the 2 motorists as he repeatedly reaches inside the vehicle. Cops say Slane was demanding the cell phone of the woman who recorded the exchange ... and police say Slane struck both the driver and the passenger in the process. Police say Slane fled the scene, but he was ultimately stopped by St. Lucie County Sheriff's deputies and arrested on 2 counts of aggravated assault with a deadly weapon, one count of attempted armed robbery and 2 counts of simple battery.