nutwood, in one sense I understand you and your views.
But I would like to express a view from "the other side". This whole reality is very new - alarmingly so. No police officer would have dreamed just a couple of months ago that they would be asked to enforce the myriad and unclear "social - distancing" measures that have sprung up today. No doubt they are just trying to enforce this new reality as best they can... And on the other side is the people they are meant to enforce these "against". We all have our own opinions and personal situations. It is a time of much personal "stress". And given that, an individual, in his/her own world of pain, can be quite difficult a person to deal with. I imagine that this whole thing is a nightmare for the police to deal with. My old experience in policing is that you are always essentially the meat in the sandwich - you get hammerred if you do not enforce whatever law gets invented, but equally so you get hamerred if you do try to do so....
I think a way to best understand all this is the "spirit" of all the various social-distancing and stay-at-home laws.Essentially the government is trying to get everyone to minimize unnecessary movement. Yes, there can be argued the point that someone is abiding by the strict laws in that a carwash is open - but is that really in that "spirit" of things? Just how essential is washing your car in a time when the entire country is at war???