Several station employees asked Gustin to leave but he refused. Gustin said the station's refusal to include him in the forum violated his fair political practices rights.
"I was arrested for insisting that I have my political rights respected," Gustin said.
KPRL did not return a call for comment Wednesday afternoon.
Station employees called the police and had Gustin processed as a citizen's arrest at about 1 p.m., and he was given a court date, said Paso Robles police Lt. Ty Lewis. He was not taken into custody.