My question involves juvenile law in the State of: California

My 14 yr old daughter has been cited for "conspiracy" to vandalism. She and 4 other kids went to someones house and did the following: one kid put ketchup on the door of the house and on the car, another kid scratched the car, my daughter and another kid put toilet paper in a tree. The kids all told the truth (except the ketchup one - she denied she did it) and my daughter was only cited for the toilet paper.

Now here's my question....A mother of my daughter's friend supplied the toilet paper and drove them to the house and waited for them while they were committing the vandalism. Her daughter stayed in the car with her. My daughter had no idea that putting toilet paper in a tree would be against the law. She just thought she was pranking a friend. If she knew it was against the law she would not have done it. But shouldn't the parent who drove them there and waited be responsible? The kids who used the ketchup and scratched the car should be held responsible because it was common sense that they were committing serious damage.

I don't believe the police and probation office know that a parent was involved. Do you think I can get my daughter's charges dropped because she basically had permission and support to toilet paper the tree from the parent? Maybe dropped charges with community service?