Trivial? yes, but it is technically vandalism to city property.
Years ago, I was doing lots of sub work for a company developing on the expanding edges of the city limits. The interstate was in, but the exits were all dead ends as the property was still undeveloped. As they would put in all the local streets for the area, they would have their grounds crew begin to maintain the cloverleaf interchanges at that particular exit by planting flowerbeds, installing trash receptacles at the stop signs, and mowing the grass weekly. One day as I sat in the project managers office he pushed a large envelope towards me as he said, "Read this, you are not going to believe it" It was a letter from the state demanding that they "cease and desist" all their private work on the interchanges , remove any changes they had made (the flowers and trash cans) , and return the property to its original state (4' tall weeds and discarded trash), within 30 days are the state would sue them.
A true story.