It's true, the police do need a court order to legally spy on you. We all know that the police never ever break the law or bend the rules. The police never make mistakes or even show any emotions. In fact, I don't think they are even human. I spent three years as a crown prosecutor at the old city hall court house and five at the CFO office... You would think I would have more faith in our judicial system and in our police and in some ways I still do but the reality is that our system is flawed because it is a system run by individuals who, like you and I, make mistakes, take short cuts and interpret things as they feel fit.
Be my guest to argue all you want with me. My advice to the OP, just be honest with the police and in turn they will respect you more.