A father and son from Roswell are facing charges accused of blaring a siren at motorists and telling them to get out of their cars.

One driver was quick to call Cherokee County 911 after the black pickup pulled behind her on Arnold Mill Road in Woodstock.

“They’re back there laughing so there must be somebody in the vehicle because he turned to look at them,” she tells the dispatcher.

When the woman was able to eventually get behind the pickup, she gave a detailed description of the truck with five people inside. You could hear the siren intermittently during the call and a man yelling over a PA system.

“What they’re doing is they’re scaring people, and eventually somebody is going to act out in fear, and somebody is going to get hurt,” the woman tells the dispatcher.

Capt. Jay Baker says because of the good description, a deputy was able to find the truck and its occupants including 51-year-old Ryan Schmidt and his 17-year-old son Luke.

“You would think you would be dealing with teenagers, but actually there was a 51-year-old man who claimed that he was the one on the PA system and had recently purchased it and was showing it to his son, who was driving, and some friends,” he tells WSB’s Sandra Parrish.

He says it doesn’t appear the truck was attempting to pull over any of the drivers but was doing it as a prank.

Baker agrees with the 911 caller that it could have ended badly for all involved.

“(It could have been) a danger to the motorists and pedestrians out in the public, (but) it could have been harmful to them as well because some motorists may have got out with a firearm and confronted them,” he says.

Both Schmidts face one count each of Use of an Emergency Siren. Luke also faces one count of Aggressive Driving while his father faces one count of a Party to Aggressive Driving.

The two are both out of jail on bond.