Followed by police

I was driving on Auburn HWY18 and noticed a auburn police officer behind me, he then followed me, I got off free way going to a appointment to work with a troubled youth, thats my job, I turned right so did he, right again so did he, left to a store to see if he indeed was following me, again he turned, I parked he drove by, 2 times. I am so tired of the police at this point. They have no accountability and rule with complete immunity. They kill people and wonder why I act nervous….trick question BTW, they want to search your car, and ask if they can like this ” you wanna give us permission to search, f not I can get a warrant- your choice?” Why cant we opt out of this brutal policing of us. ITs not protect and serve its abuse and harass