When the FBI vehicle containing Gordon Cole pulls up to the Twin Peaks' Sheriff's Station, Gordon Cole is dressed in casual clothing. When Cole enters Sheriff Truman's office moments later, he is dressed in a suit and tie.
To me this should have been the final episode. This episode is David Lynch at his best. In this episode Cooper finally returns to "Twin Peaks" and this "episode is" and "is not" what you wanted to see in the new season of shows.
In this episode Cooper arrives and the "Past Dictates the Future". Strange and creepy this was an episode fans will just love!