You can try posting one of our No Parking Dumpster Area Signs. Messages like “Do Not Block Dumpsters”, “Unauthorized Vehicles Will be Towed”, “Dumpster Area No Parking Within [xx] Feet” can work in your favor and prevent unwanted vehicles from blocking your dumpster. For specific warning, fine information, and other things, you can also use this Custom Dumpster Rules Sign wherein you can add up to 12 lines of text.