When the neighbors go over to talk to Les Goodman about his car starting on its own, as he walks onto his porch, the number 321 is on his house, and a porch light is visible. When he starts to explain his insomnia, there are just holes on the front of the house where the address number and light were. Then, as night falls and his wife brings him a glass of milk on the porch, the address and light are visible again.
When Claude Akins tries to start his car, Jack Weston is at the end of the car. A young girl walks to and looks in the passenger window. When the camera angle changes, looking through the driver's window, suddenly Jack Weston has replaced the girl looking in the passenger window.
After all the power goes off, Steve Brand tries to start his car. The starter can be heard. But, with all electricity neutralized, the starter wouldn't crank.
The street sign in the beginning is all wrong, it faces the camera rather than the street where the story takes places. In a typical American city, street signs are almost always placed in the direction of the street they are indicating, so traffic on the other street in the intersection know what they are turning onto or passing. In other words, the story is not set on Maple Street. Maple Street is the intersecting street at the end of the road the story is set on.
Early on, Steve Brand says he heard the roar of the "meteor" flying over the neighborhood, but the sound was a warble, not a roar.