false coverage

My daughter-in-law wrecked my son's truck in Tucson several weeks ago. She was deemed at fault because a car making a left turn was already moving to make the turn when she hit her. Of course it seems odd that the officer knew the "victim" and that my son's truck, going straight, had the right-of-way, but who can argue with an officer who swears in court that the victim was not at fault. In the meantime, the insurance paid but CNA is still twiddling their thumbs or sitting on their hands, with no progress on their part. I believe they are trying to get out of paying this claim so who do we contact to report them? BBB? AZ State Insurance Commission? It is a National company with deep pockets...it seems the White House should know about this illegal practice...