So your friend got up to almost 50 mph (80km/h) in the time it took him to cross an intersection? If nothing else that's reckless endangerment. You should know better than to do stupid shit in front of cops.
On the other hand, I firmly believe that the vast majority of speeding tickets are useless for anything other than revenue enhancement, and would like to offer a suggestion. The K40 radar detector and laser jammers can save you from a lot of highway tickets.
http://www.k40.com/Products/Radar/Un...ualRemote.html If it's legal in your local area, the site lists local shops that can install it for you. Expect to spend $300-400 for the front/rear laser jammer and radar detector setup.