The West Parry Sound OPP is charging a man with impaired driving.
The officer was parked on highway 400 when a driver stopped to tell the officer about a car that was causing concern .
The OPP took details of the car and located the driver on the highway.
A 64 year old man from Britt has been charged with driving with more than 80 milligrams.
He will appear in court on March 30th.