BOSTON (AP) — Boston police arrested a man over the weekend on drunken driving charges after they say he sprayed cologne in his mouth to mask the smell of alcohol.

Police say Hoi Ngo of North Attleborough struck a city sewer truck from behind at about 8:30 p.m. Saturday in Dorchester.

The truck driver says the 40-year-old Ngo at first fell asleep; then tried to drive away but couldn’t given the damage to his vehicle; and finally sprayed cologne in his mouth.

Police say when they arrived at the scene Ngo sprayed cologne all over his body.

Officers say it didn’t work.

They say the suspect had bloodshot eyes, poor balance, and an odor of alcohol on his breath, so he was arrested.

Copyright 2012 The Associated Press.