The teeth were initially believed to be from a deer; however forensic tests later confirmed they belonged to a person.
The customer told staff she had felt something, which is why she brought the car in to be looked at.
Investigators believe the driver may have unknowingly run over someone who had been killed on the New Jersey Turnpike back in December; by the time the body was discovered, it had been struck by multiple vehicles.
The incident is still under investigation. The female driver is not facing any charges, as detectives believe she did not know she ran someone over.