In the field during encounters with police, there can be great ignorance of the intent of the law, or overreach. When it gets to court (and expense) there is the 14th amendment equal before the law. This has been used as a lawyers ploy in civil suits that I think sends it out of context. Anyway, enforcement there is then more consistent across the state.
If it ticks off the local police head, or he/she sees you as a threat to public decency, or thinks that there may be fire under the smoke, or his idea of justice has not been served, there can be harassment, which I have seen. You can't leave your door and see a cop without being stopped. I found in my case (I was too political, not a nude issue), that there was a group within the department that did the fascist deeds, not all of them. Years ago, I had a friend make a complaint after beating an arrest. He got stopped every time any cop saw him. He decided to move and drive another car, rather than live as a target.
Anyway, you get offered a pleee thing first. Then a lower court judge which may, or may not be a crony politician in robes. After that, in court, the odds are good that one side of the state will have to interpret law the same as the rest of the state. Then, there is the jury option (very expensive), which you might imagine results would vary. I'm not a Washington State attorney, but that is pretty common procedure in the USA.
If you have the means to support a suit, it should change things across the state. A shot heard around the state for freedom! Then, the local politicians might react, if it got loud and political enough. Depends.
Before that, as you say, most people are just minding their own business. Well, then there's the hysterical mother hiding her kids eyes.
In the words of Mr. Morton, "Jus' Sayin'."
Jbee