I'm curious, if you work remotely from home - why do you need to travel 450 miles and stay on an RV site developed on a rural farm.
I get it, nice view, no neighbors, creek on the backside ... but remote working means "from home or your own office" anywhere that has ISP service. But you chose to eliminate the "home office" then travel 450 miles and park where you have no or limited service.
Also, I believe it's probably legal if it only contains a limited number of guest sites for self-use it becomes a zoning issue and requires permit for a developed RV park. The farmer is probably bordering a case of illegal regardless if he rents it, but rural areas are often less restrictive unless one has a neighbor that disagrees and pushes hard at the interpretation of a specific zoning law.
