When the gas station attendant looks up at the wall from behind the register, the clock has no hands on its face.
The motorway diner has not open,yet when the owner goes to check the till it is full of money.
The sign on the doctor's office says "Surgery". This is a term used in the UK, as well as New Zealand, for a doctor's office.
The sheriff mispronounces the name of the state he lives in (Oregon).
Even though the film is set in Oregon, USA, the Firestone ad on the side of the gas station refers to "tyres" not "tires". Beth also refers to the "car park", a term which is not used in the USA.