First, I must give Hertz credit for excellent customer service. The responses were courteous, prompt and helpful.

Finally, “.... upon further review of this account, an adjustment has been made on the violation amount from $820.00, down to $490.00 (deducting the late penalty and $30.00 administration fees)....”

Thanks to all the posters above: Autoslash, Dave Noble, m907 who have kindly taken time to offer advice.

Big thank you to Hertz.