NORTH PERTH, Ont. -- Provincial police say a man looking for a caffeine infusion has been charged with drunk driving.

They say the man was leaving a coffee drive-thru in North Perth, Ont., early Thursday morning when a concerned citizen called police.

Investigators say that when officers arrived at the drive-thru, they realized the man's ability to drive was hindered.

They say the 47-year-old from Brussels, Ont., was arrested.

He's been charged with impaired driving.