When Danny arrives to pick up Tina, he tells her he is double-parked. When she then storms across the street with Danny following her, we see the car, and it is not double-parked; but shortly thereafter, when Danny makes a pay-phone call, the car can be seen double-parked in the background.
In one scene, Danny can be seen walking past a movie theater, that advertises Q: The Winged Serpent (1982) and Halloween III: Season of the Witch (1982) on the marquee. However, the film is supposed to take place in the late 1960s.