I got the car fixed.
I took one of the rocker panels into the dealership on Saturday and left it with them (I still have the other).
Received a call today with a lovely message "Since you did not give us the opportunity to repair the damage we are not going to pay." I believe that I mentioned earlier that their body shop said "no damage".
I am bewildered as to why they would risk the negative publicity over $1400 in damage. I will be pursuing reimbursement through small claims court and reporting my experiences publicly once this has reached it's conclusion. I'll also follow up on my initial complaint with Chevrolet.
Imagine it should come as no surprise that I'm upset with the situation. Currently out of pocket $500 (deductible)
Claim on my insurance
10 hours vacation time used
$53 small claims filing fee + whatever additional time off/fees if I have to appear in court.