In addition to the advice you have already received - take pictures of every sign you post because people rip them down but if you have photo proof the cops will be more likely to tow. I work for a company where I am responsible for no parking signs in Jersey City pretty often and was instructed to do this and it has worked.
allaboutthataction t1_j9sjksp wrote
Reply to No parking signs for a move by Jersey-City-2468
In addition to the advice you have already received - take pictures of every sign you post because people rip them down but if you have photo proof the cops will be more likely to tow. I work for a company where I am responsible for no parking signs in Jersey City pretty often and was instructed to do this and it has worked.