I'm a cop, and sometimes I raid people's houses just for fun!
Why would you act in that way?
Because I think the people who live there are assholes.
Lying is completely unacceptable, even if as a cop you think you can get away with it.  Regardless of how you feel about people, you are committing heinous crimes just for your own amusement.  You belong in jail for your conduct, and that is where you will end up as soon as you are caught on camera.
I'm a respected officer and I keep my cool.
Just because you are respected around, doesn't mean you can take advantage of your position and power. Cops are in a bad position these days, so lying will only worsen images of cops even more. Think about your fellow cops, would they want their image tarnished as well?