I’m willing to bet a lot of money that this particular officer has never cited, let alone arrested anyone else for this offense, despite seeing thousands violate it.
Selective enforcment, especially of vague laws, is what tyranny is all about.
Fire the cop, after suing his ass off. And fire his supervisor as well, for allowing this woman to remain in jail.
There was, just recently, a case decided in favor of a guy who had been arrested for flashing his lights to warn drivers of a speed trap.