According to the South Florida Sun-Sentinel, the FHP first started making use of these commercial vehicles back in 2014 when it used a Florida Department of Transportation truck as a traffic overwatch vehicle. The semi reports aggressive driving, texting while driving, and other traffic law violations to patrol vehicles further down the road, and despite being clad in official police livery, most seem completely unaware that they’re driving next to a cop car. “Believe it or not, people will pass this truck, although it is marked as one of our units,” said Sergeant Christopher Galante. “It is amazing what people do around tractor-trailers.”
Source: https://carbuzz.com/news/florida-cops-are-using-a-semi-truck-to-enforce-traffic-laws