During the season finale, part 1 (episode: Two To Go) after Buffy has gotten the 2 villians out of jail they are hiding around a corner from Willow as she tears the front of the police station apart. The show this from Buffy's POV and we see a police officer (who Willow put to sleep earlier) groggily stand up, stumbling backwards away from Willow, supporting himself on the door of his cruiser.

A short scene is shown where Zander arrives with a stolen cruiser they use to escape.

The scene switches to a shot from behind Willow as our heroes escape with the stolen car, driving past Willow AND the previously metioned police officer as he goes through the exact same actions, starting on the ground and moving backwards again. Actually, all half dozen police officers and Willow are repeating themselves, the one on the ground is the most glaringly obvious.