The trucks ID changes from one scene to another. i.e. 4502, 4501.
When Hannibal and BA's decoy truck is followed the following truck's Webb's Brewery logos are blue/red/yellow, with black writing, when they pull over Hannibal and BA shortly after the logos are yellow, with black writing.
When the shift was ending at the Webb Brewery and employees leaving, a sign is seen saying "National Motor Plant".