In truth, this looks to be a situation where two different government agencies exercising the power of eminent domain may well be in competition with each other.
Does anyone have any idea who runs the government in California these days?
Have the cops been notified?
Actually, if you get the county involved you don't need SCOTUS to supply authorization for a "taking" The county of Los Angeles is quite competent at that already. By the way, not much dirt out here, just sand and Joshua trees - and snakes of all kinds.