When Dorothy asks Greaseball why he didn't help Surfie, the scene cuts to a close up of his face. Prior to the cut, the background shows a built up area, with houses and garbage bins by the side of the roadway. In the close-up, the background suddenly shows a long, sweeping hill on a country road.
When Glynn and Dorothy pull up in the city, neither on them are wearing seat-belts. Seatbelts had been mandatory for some years.