On June 29, a Mount Carmel speed camera clocked the 56-year-old Rogersville resident going 66 mph in a 55 mph zone. He was sent a ticket.
Assistant Police Chief Mike Campbell says Gibson mailed back a copy of the citation with a handwritten note, claiming he wasn't subject to local speed zones because he was the deputy chief of the CIA.
The federal agency told police Gibson never had been an employee.
Gibson was arrested for criminal impersonation and released on $500 bond. Campbell says federal charges are also pending.
A telephone listing for Gibson did not take incoming calls.