It is illegal to pour salt on a highway.
9.12. 040 Spilling products on certain pavements. It is unlawful for any person to spill, pour, drop or place, or to permit the spilling, pouring, dropping or placing upon any asphalt or bituminous pavement laid upon any public street, court, alley or place within the city, and oil, petroleum, kerosene, benzine or other similar oil,…