WB, you advocate making people pay for SAR costs when the costs are triggered by stupidity or negligence.

Similarly, an arson found guilty of starting a forest fire can be held responsible for paying all costs related to suppressing that fire they started.

Making her pay to clean up her graffiti mess seems very similar. I'm surprised you're not taking that position on this one. The paint cleanup costs are probably not that much more than painting it in the first place (transportation, materials, time). Certainly less than flying helicopters on a SAR mission, and a whole lot less than fighting a big fire.