On the door of the truck is the name of the company, R.L. Vallee. I searched the name and found a google business page for that company with several complaints about dangerous driving including one incident involving the same truck.
(Translated by Google) Friday July 9th around 05:30 am on Métropolitain boul, Langelier height,
the driver is tanker # 767, is a dangerous driver! This one sticks to our bumper (3 times in a row) by turning on its lights to make it drive faster. I am in the central lane of the Metropolitan driving at a respectable speed! I don't have to endure this driver's rage! All he has to do is overtake and not put us in danger! (Original) vendredi le 9 juillet dernier vers 05:30 Am sur le boul Métropolitain hauteur Langelier, le conducteur fe la citerne #767, est un conducteur dangereux! Celui-ci se colle a notre par parechoc (3 fois de suite) en allumant ses lumières pour faire rouler plus vite. Je suis dans la voie central du Métropolitain conduisant a une vitesse respectable! je n’ai pas a subir la rage de ce chauffeur! Il n’a qu’a dépasser et ne pas nous mettre en danger!
https://goo.gl/maps/uRh8xuqZsmmD3ZKt5