An employee of my cable company, Time Warner Cable, recently backed into me and is now lying to his insurance company, what should I do?

I'm in SoCal and have been a TWC customer for years, and while I was on lunch break from work, one of their employees backed into me with one their fleet trucks while trying to get into a parking space. He immediately told me not to report it to his insurance company, which I did either way and told them he said this. Now, the insurance company is saying the employee said I was at fault, even though he admitted to me he backed into me after the accident, and failed to report it to his insurance company until days later.

I have liability insurance, not full coverage, so my insurance made me pursue the matter directly with TWC's insurance company. My insurance company determined I was not at fault.

After I explained to TWC's insurance company that the employee told me not to report it and that he failed to report it himself, they said they would cover half of the repairs. That doesn't seem fair or logical, why would they cover half if they don't think the employee is at fault?

I've talked to the collision center that gave me the estimate and they said the damages look like a low-speed car backed into me. I asked a lawyer, and they said it's best to take them to small claims court.

Any advice?