I agree with you… the moment the car on the left started smoking the rear tire is the moment her oh shit radar should have grabbed the break. I ride in traffic like that every morning going to work and even though it’s almost a guarantee that theres gonna be a sudden stop from 80 mph to near 20mph in less then a moment you never know when. Every time I get boxed in from cages all around me I drop my following distance waayy back. Then I am constantly scanning everything around me. If the cage behind me is to close for my judgment I do one of two things to back them off… first flash the brakes 3 times to grab their attention… if that doesn’t work …I start to do a weave in my lane then they really get the idea and go wayyy back. Point is I have had close situations enough to know to keep my mind in the ride at all times and scan without a seconds loss.