maybe her mother miraculousy came out of the coma and disowned Claire for being a bad driver. Well the cop seemed to think there was more to the story of the accident like Claire and her mom were fighting and Claire was driving like a crazy woman and her mom was screaming for her to slow down and Claire was all 'No, I'm going to kill us!' and laughed maniacally...What was I talking about? Oh yeah, or maybe Claire was on drugs. My point being that mom came out of coma and had a falling out with Claire.