Other mistake: In addition to the brake lights, there are no lights at all on the back of the car when you see it driven from behind. However, you can see that the lights are on from the front of the car.
Other mistake: When Jamie is trying to tell everyone that Tina is at a store, Dr Loomis says "Store? What kind of store? What do they sell there?" However, the captions say "Store? What kind of store do they sell there?"
Other mistake: After being shot by the police, Michael has no blood, bullet holes or any injury.
Answer: She thought Michael was chasing her.