I'm going to tell my brother's friend to shut the F up after he distracted my driving through a difficult section of road
Is there some danger in that area?
Yes I drive a heavy truck and it was a very complicated road to navigate.
Your passengers should make things safe for you if you are driving. It is good for them to heed your words and leave you alone.
I will do what I want. He doesn't know me and I'm tired of him.
Don't drive with him if he is going to do that. It is dangerous to distract a driver while they are driving.