as far as the taping/recording issues, I have a real problem not being allowed to tape/film/record an officer without thier consent when I am pulled over since they are allowed to record me without my consent. Most officer carry a voice recorder with them to record any communication during a traffic stop.
at the same time, Police do have a dangerous job, and I try to make them feel as safe and comfortable as possible when they stop me. and as much as they piss you off sometimes, they are trying to serve and protect you. They don't make the laws they enforce them.