I first read about this in a post at Google Blogoscoped
From the Gear Live blog:
In January of this year, I was pulled over by a traffic officer for “disobeying a steady red”, a.k.a. running a red light. I pleaded “Not Guilty” to the charge, and today – nearly six months later – I went to court to find out the fate of my ticket violation. Check out how Google Maps saved me some serious cash – and points on my license!