Lots of folks disregard prohibitions like cutting Manzanita or Joshua Trees.
Over four hundred Joshua Trees were cut down by the Jojoba farm between Highway 2 and Sheep Creek- On Serrano, below the highway. Their tractors would knock down the trees and simply bury them. There used to be quite an extensive grove there of very mature trees. When confronted, the Chinese workers would simply pretend they didn't speak English. The farm is owned by a group that has a number of Jojoba farms in Lucerne Valley. I remember talking to County building and safety but they didn't seem interested in looking into it.