So if I'm reading right, you're the white car in this scenario and you fail to yield as per the highway code/road traffic law? And you think this makes you a hero in the story?
The irony of course being that he's literally putting his life in the hands of a truck driver. As a self professed cyclist, he should know that there are zero altercations a cyclist can win against against 50 tonnes of death, rubber and steel.
Many cyclists struggle with this concept - you may be legally correct, but that's not gonna help you when you're sucking your chicken through a straw and peeing in a bag taped to your leg.