In 1982, when I was a dumb kid, I ignorantly did that on I-70 in the canyon area of Utah. The trucker stayed close on my butt for the next 150 miles. I was horrified, but I got the message.
Maybe you should have sped-up?
That truck driver was way in the wrong to do that.
Messing with peoples safety out of anger is always wrong.
Truck driving IS pretty stressful, I did it for a couple years, in that short time I saw way too much stupid on the road.
I went back to being a mechanic, my physical and mental health forced the issue.
Its not for just anyone and I was not a long haul driver, I was mostly doing in state heavy equipment hauling and home most nights.
Drop and drag long haul was an odd combo of boredom and stress for me, I tried it for a couple weeks, then got canned for being a hot head with dispatchers.