Const. Anie Lemieux of Montreal police said a 30-year-old man and 24-year-old woman were found unconscious in a vehicle on St-Laurent Boulevard near Roy Street on Friday around 6 p.m.
She said police discovered they were merely sleeping and that they were under the influence of drugs.
Police arrested the man because he was the one behind the wheel. He was later released with a promise to appear.
Lemieux would not confirm the man’s identity because he has not yet been charged, but La Presse and other media outlets have reported him to be Mark Lafleur, the son of former Montreal Canadiens player Guy Lafleur.
The younger Lafleur has had previous run-ins with the law.
The elder Lafleur once stood trial for helping his son break the conditions of his bail, as well. He successfully appealed his conviction and had it overturned in 2010.