I worked for a body shop…I completely agree with him on not calling your insurance comany until need be. And considering where you got hit…I agree again that you need to go to a good body shop!
Even if the guy claimed fault at the accident, he probably called him insur. and said nothing about fault until he was asked after giving all the info. They probably prompted him to have you call yours. Dont give in!!!
Even if they end up paying for it…your still out a deductible. Dont waste your money.