Albert Simmonds was arrested inside the 42nd Street-Bryant Park subway station at about 4 p.m. on Friday.
Police also found drugs on him and added a charge for criminal possession of a controlled substance.
Simmonds was not on duty at the time of his arrest. It was unclear if he had a lawyer.
He was one of three city employees arrested in a 12-hour span on Friday. None of the arrests was connected.