These horror stories of police arresting people on the beach or dragging people out of church are way overblown. The media is going to over-report anything that will get views and outrage--similar to how they wayyyyy over-report police shootings of minorities.
Regardless, I think this 'gubment better not take my rights' argument is really alarmist and simplistic. The government doesn't want to be arresting solo beach goers just as much as said beach goers don't want to be arrested. And how is this any different from a mandatory hurricane evacuation order? The government tells people what they can and can't do all the time, and once the crisis passes, things return to normal. Acting like this is some kind of slippery slope to a 1984 dystopian hellscape is pretty ridiculous.
I'd even argue that the current crisis gives police better justification to arrest people not following the rules than a hurricane does. If you disregard a mandatory evacuation at least the only person you're hurting is yourself. In a pandemic, someone's flagrant disregard of public health guidance endangers other people too. Do others have a constitutional right to not be infected by idiots who refuse to follow the rules?
Full disclosure: If it wasn't possible for church goers to infect others, I'd be all for them voluntarily gathering in the largest groups possible. Disregarding public health guidance to worship your imaginary man in the sky is a beautiful example of both constitutional rights and natural selection.