I used Boondockers a lot for a couple of years. Your stay will depend on the person's house you are staying at. If they are mask breathers, then they probably are scared, but many Americans are done with it all, so the best you can do is ask. Some will be happy to host you, some will not be hosting anyone for at least until Nov 4th.
I met great people and you get to stay in the community rather than at a place for visitors. All but one hose was very friendly and I made friends and got a insiders view into the local area.
Typically if you need power for AC you pay them $5 per night, suggested, but you ask, if just for battery charging then probably nothing. For water you can offer to pay that 25 cents you will use, and is just between you and your host what you do.
I have had host bring me in to shower, and they fed me, and I fixed their bike and enjoyed the evening... Most are just glad to hear about your adventure RVing.
