Bird said:It's most likely not a matter of caring or not caring; it's a matter of having evidence that a court will accept. And yes, it would difficult to enforce or prove a case unless there's an eyewitness.
Evidence you need to prove it was there. I removed it, why, when etc? It is more like a waste of tax payers money to inforce the rule. Just like many others of laws out there.
For me I would say who cares. Unless the people around you are like crazy, no one will notice anything gone.