get a voice recorder, and if you feel compelled a camcorder, make sure you don't have the view finder open and its not sitting on your dash as they can call you for driver distractions, inform the officer that the camera is recording and the voice recorder is timed and dated, you will be amazed how fast there attitude changes... some might say that im ridiculous and wrong, well, after you have have been wrongly accused of drinking and driving... and being wrote up for random speeding tickets and yes they were all dropped in court... you tend to take your own actions to make sure the true story gets told to the magistrate.
i just don't understand why so many cops have to act so high and mighty, you write tickets enforcing laws that are pre written, do the job with a smile... not staying all cops are terrible but i have come across to many with a ridiculous chip on there shoulder.
i have gone as far as hand writing supervisors and sending video and voice recordings. asking if this is how they teach new officers to handle simple traffic situations. Yes i have received letters back apologizing for the performance of some officers and explaining they will be informed to change.
or you can show your boobies giggity giggity