Say what you will about law enforcement, the reality is that the cops who use these corners as their reserved parking know they will never be held accountable for their gross disregard of the law. They are already seen as criminals by the neighborhood & the 50th precinct is being dragged into their muck by their non-enforcement. Remove the signs. They serve no purpose. I stand corrected -there purpose seems to be to save 4 spaces for those of us who are law abiding, while the anarchist "cops" park illegally.