If you are approached by a police officer, it is not the proper time or place to “express yourself” or worry about being “dissed” or “disrespected”. Calm and mature heads should prevail.
Without a warrant, you are not required to give the officer the time of day, let alone allow him to explain the reasons for being at your door or heaven forbid, permit the officer to enter your home. If the officer does not have a warrant, don’t slam the door, be abusive or yell. JUST SHUT THE DOOR.