i don't know where you are located(isn't the internet amazing), but around here there is an absolute law that says if there is anything on your sign besides the words NO TRESSPASSING it is not a no tresspassing sign under the law, and you or i can walk right past it as if it wasn't even there. and not be charged with tresspassing. it has been like that in this area for many years and every zealous for the hours pioneer and i only go out on saturday morning elder knows this and will proceed according to the law, not any individual person's wishes. sad but true.
what did your signs say? i like "tresspassers will be violated", "survivors will be prosecuted", "can you make it to the gate in 3.7 seconds? my rotweiler can"