You can call the number from the website and tell the operator that you need to do just that. They will pass you through to the safety team. Describe the event and give all the information you have like trailer number or truck number so they can identify the person accurately. However date, approximate time, and general location can be used to narrow it down so long as there was not multiple drivers in the area at the time. If they can't identify the individual driver they still take the complaint seriously and will send a message to all drivers regarding what happened and explain that it would be unacceptable and how or what they should have done to avoid doing it or making that same mistake. Keep in mind that their policy is all discipline is private so you will likely not get a follow up. But trust it will be taken seriously and handled by their policies and laws as well as appropriately and speedy. Prime prides itself on its reputation and it has a good one for a good reason.
You have to find out what division they're under first
Did they do something that should be reported to DOT?
Thanks! Your answer is awaiting moderation.