In the same way that you are still trespassing even if you can easily step over a fence saying "no entry". Try going to a judge and saying "well the sign lied,

In the same way that you are still trespassing even if you can easily step over a fence saying "no entry". Try going to a judge and saying "well the sign lied, because yes I was able to entry when it said I shouldn't be able to" Crimes are not based on technicalities, they are based on intent. The environment put up resistance and signs to let you know it was trying to effectively control your access. You just willfully ignored them and stepped over the fence anyway.