Thoughts:
I'm glad you escaped with only a dented hood after being hit by a large piece of flying debris while racing on a public road at 135mph.
Does your friend really want to submit your hood repair through his insurance, thereby increasing his premiums, rather than just pay the few hundred bucks out of pocket? If he does want to submit it through insurance, you should probably have a detailed police report generated of the entire event for the insurance company...
