MERRIMACK, N.H. (AP) – A Nashua School District driving instructor is due to appear in Merrimack District Court Dec. 1 after being charged with drunk driving Monday.

Arthur Desmeules, 66, was on his way to teach a driving class in a government vehicle when he ran off the Everett Turnpike in Merrimack and hit a post, state police said.

A trooper arrested him after responding to a call about a disabled vehicle. The car had flat tires and damage to its passenger side.

Desmeules is free on bail. Police are still investigating and have asked witnesses to contact authorities.