I was having a trouble last year and the year before where I had one particular officer repeatedly pulling me over. The interaction was usually the same, he'd pick out some piece of equipment he said was in violation of the vehicle code and issue me a warning for defective equipment. I'd have to take time off from work to go an hour away to the DMV for inspection. The car would pass and usually within a few weeks he was pulling me over again. Of course I never actually received any tickets from the officer, always written warnings and another trip to the DMV. Three times for the exhaust alone, which always passed. It got to the point where I considered recording the events to document the harassment.
Lately, I've been considering installing an onboard interior cam, or possibly a dash cam system with telemetry. Seems like there's a huge range of options. Any suggestions on systems or personal experience with them would be greatly appreciated.