There are many ways to commit crimes but the best crimes are the ones where no one finds out you even did it or that there was even a crime committed in the first place.
Like painting bird poop on something in public, you just became a vandal, and no one will ever know.
Remove the mattress tag, no one's gonna stop you, no one's even gonna know. You just became a criminal and as long as that mattress stays in your possession then, until you die, no one will ever even know.