I agree that would be the appropriate punishment for the crime, though I am not sure about the courts' ability to fashion such a multi-jurisdiction sentence (maybe could be part of a plea bargain negotiated with the prosecution...). Also, I am not sure I want to see her unleashed in the parks again...at least not without a lot of supervision.
However, even if not, a criminal penalty can include restitution. The court could order, as part of any criminal conviction, that she pay the cost of clean up.
