I made this same mistake. Guess I'll have to check out those tunnels next time!

They started skirting the law during the COVID lockdowns because the roads were largely empty. At that time, you could get away with it.

More and more police forces across the country have adopted do-not-pursue policies over the last couple of years. That means anyone willing to skirt the law and run a red, drive the wrong way in a one way, etc. can just... flee the cops. It's just more law-skirting, after all.