Red Light Cameras

I was curious if anyone is aware that cities are claiming they are grandfathered because they had a contract prior to 2007 and, for that reason, they can send report to credit agencies against red light camera scofflaws? This is new to me.

http://www.dallasobserver.com/news/dallas-keeps-red-light-cameras-right-to-screw-up-your-credit-7114937