blind spot

So, I was looking at the NC laws the other day, and saw the following law. It became effective on December 1, 2011. I think that this law is good, but I am not sure if it is going to be enforced, unless there is a wreck. What do you all think about it? G.S. 20-154 "'(a1) A person who...

I was almost rear ended by someone on Sunday. :eek: Long story short: I was in front of this driver for a while in daylight, it was an easy, slow stop, and all of a sudden I hear his brakes/tires squeal and see his hood out of the corner of my eye. I'm not sure what I could have done...