St. Maarten Private Eye

Graffitti painted on private walls is a crime as it is defacing private property.
Cole Bay is a great example of youngsters who have nothing to do. A few months ago, Cole Bay residents woke up to Welfare road covered in graffiti, on the walls of chinese supermarkets, on sign boards, on walls belonging to private residents.
This is criminal, as it is an attempt to get attention and the graffiti was NOT done by the owners of these propertie's which means some group of people committed a crime by defacing other peoples property and business places.
How would you like it if tomorrow you wake up to find that a group of people painted graffiti on your car? would it still be considered art? or a crime?