Point taken, the city usually owns the curb, I think... but has a painted curb been defaced, or merely weatherproofed in a colorful, free-expression sort of way

Point taken, the city usually owns the curb, I think... but has a painted curb been defaced, or merely weatherproofed in a colorful, free-expression sort of way? On the other hand, stop signs and the like tend to be stuck into private property. There's definitely some funny business when it comes to signs and sidewalks; e.g., the landowner owns the sidewalk, but is required to keep it clear and level, not prohibit the public walking on it, not turn it into a flowerbed, etc.