Good read.
Videos in court do not get played unless it can help a case. A video of you talking to a cop does not help the judge decide if you were speeding but if the officer decides to tell the judge that you are an asshole to him, you can bet you will hear your voice playing in the court room from that expierence.
Other than that, cops naturally profile. Everyone does. It was a good read and made some good points tho.