My sister was driving down the road when a car came out of a parking lot into the street infront of her cause her to slam on her brakes and swerve left, where she ended up hitting a parked truck. This man then claimed my sister was driving bad and that it was her fault. Though he was trying to leave after it happened and then thanked her for not hitting his car. I got the name and number of a witness that saw the whole thing and is willing to say that he knows it wasn't her fault. So my question is, can we know sue him in civil court or what can we do to handle this? The police made a report but weren't much help, so what can i do. That specific car didnt have insurance since we hardly use it. I'm in Texas btw.