Perhaps the top tier Ground contractors have them. Certainly makes sense, BUT I know a Ground guy that does swaps all day and drives an OLD FedEx Freight Volvo with zero bells whistles, or cameras... just saying.When I worked for a contractor they had Cameras.... I know this because I was called on the carpet for my language when a drunk cut me off in Columbus. The owner of the truck thanked me for not taking the truck out.
He said he knew that brake were applied along with the horn..... So they do know all functions of the truck whether you want to believe it or not.
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