Jay Shells started a brilliant project around New York City, posting rap quotes of specific locations at the spot mentioned. He anticipates the signs being stolen within a week, but the Lil' Fame line calling the cops drug dealers ("But them you got them clockers at 73rd/ That was drug associated since the '70s, word"), that Shells put up in from of the precinct probably didn't last longer than a few minutes. 

The video is dope. You see all the quotes from Nas, Mos Def, Jay-Z, Kanye, Pharoahe Monch and more here.