Don't police take anonymous tips? Find out the type vehicle and find it in the school lot, at home or some where so you know you have the correct auto and take down the tag number and description. Go to the police dept and sit down with an officer and explain the situation and the he is takin alternate routes to avoid detection. The will then know to be watching for him, that way you and your daughter never wind up in the picture. While on the surface this doesn't look like a big deal, I remember what it was like in a carfull of teens after school. We were lucky MANY times that all the noise and horseplay didn't get us killed.