This thread started about non-compliance signs and that is what I am talking about. Let's keep it straight and on subject.
Ok, so lets say they just call the cops instead of asking me to leave. I seriously doubt the police would arrest me unless I was refusing to leave after being asked or breaking the law in some way. If their sign is not in compliance, why would the court pull your license? The businesses have to play by the rules just like we do.
If the sign IS proper, what you said certainly applies.
I'd be surprised if the average LEO would differentiate between the red line sign and the proper sign. He may not arrest you, but he probably wouldn't tell the property owner to straighten out the sign either.
I'm not interested in spending a ton of money proving to a judge what is and what isn't a legal sign.
Point is, the red-line sign may not follow the exact letter of the law, but the point to a reasonable person is clear, and if you opt to not follow it, you're risking a legal battle that you may not win.