I see the legal implications of this discussion as being much like the speed limit laws.

Most state troopers won't pull you over for running 5 miles over the speed limit. Sometimes they won't pull you for even more than that.

But there's no way they will ever issue a statement saying that.

The spirit of the law offers flexibility, but it is the letter of the law that stands up in court. The letter of the law is called into play usually when the real issue is something else, and the law needs a technicality to allow them to take further action.

Stated differently, it is highly unlikely that state troopers will ever start to systematically ticket everybody who drives 56mph in a 55mph zone, even though the letter of the law says they could.

But if they suspect a driver is guilty of something else, they can use that as reason to pull him over for further investigation.