Minority report police car, shopping , and my parents' divorce lucid dream

So I had another weird lucid dream. In this dream, my family and I were heading towards Wal-mart to do our weekly shopping. I noticed that my father was not in the car but of course no one noticed. On the way there, I had a feeling that something was about to happen as we emerged from an underpass. I looked back and saw a police car staged on top of the overpass, safety cones and lights already deployed. I think there was an accident that was about to happen but I never confirmed. The police officer disappeared into the horizon and we finally made it to Wal-mart. There, at customer service, an employee handed us some paperwork to fill out. My father appeared out of the blue, in a police uniform, and handed the employee his i.d. and paperwork. Apparently, now the entire family could use his discount. That's when I discovered that my parents were divorced. My father left without saying a word. The lucid dream ended and I woke up.