Insurance Experts Question..

[Denny S.]

Ok, Heres the quandry.. My son is driving my F-350 Crew Cab Dually. He wants to make a right turn. He is on a 2 lane blacktop Speed Lmit 45 heading west up a slight grade. The turn requires moving into the left lane to make the swing because the turn is an extreme angle.
If you don't move into the left lane it will require backing up at least once into the roadway. Sun is setting creating a strong glare. He swings left turns right and is nailed by a Toyota in the right rear tire and running boards. Toyota is pretty much toasted. Dually has $1500 damage.
Lady jumps out, I was blinded by the sun, I'm from out of town & lost, I didn't see your signals, It's all my fault. So my brain surgeon son doesn't call the cops.
Nobody is hurt. Both vehicles can be driven. Her Ins. Co. ( State Farm) decides to screw me around. They are claiming that the accident is 50%
our fault and they will pay only 50% and want to go after my insurance co. for 50% of their drivers damage.
They are standing firm on this and my answer is F+++ U. And I'm firm on this.
So a few tips or hints would be appreciated.