According to a Wmur report:
Michael Henson, 35, faces public indecency charges. Police said they believe he was under the influence of narcotics when he was arrested.
Dayton police report [says] the incident happened around 8 p.m. Tuesday in the 700 block of St. Nicholas Street.
Witnesses told police that Henson, who was only wearing shorts and socks, pulled down his pants and began having sex with the front grill of a vehicle parked on the street.
One witness told police that the act went on for a short time, then Henson passed out in the yard, the police report states.
Henson is being held in the Montgomery County jail.