Deputies said Jospeh Easterling was allegedly firing an AK-47 assault rifle at highway signs from a vehicle.
Easterling was among a group of people in the vehicle. He also allegedly had a .22 rifle.
He was charged with aggravated assault on a police officer, illegal discharge of a firearm and criminal damage to property.
The driver, Laken Breanna Magee, was charged with criminal mischief and reckless operation of a vehicle.