@Jane3235 Your place is gorgeous! I'd love to stay there myself.
As to your listing, you might want to enter some more detail about it being a working farm, and the possibility of hearing machinery or animal noises, or whatever may arise. Get all of the possible "negatives" out of the way in your listing, and then guests should be better prepared as to what to expect.
I also don't see anything about guests not staying in and working during their stay. Why would that bother you? Remember- it's their space while they are staying. You don't know their motivation for coming to say. While you may think of it as a base for those who like to be outside, they may just need a change of pace from their usual spot, and you do advertise fast wifi, which is kind of all one needs to work from any location.
Yes, they should follow your rules as to closing gates, etc., but a few more details in your listing might prevent friction with guests in the future.
Maybe try to reset the attitude from them with a bottle of wine and another request to close the gates, because your dogs or other animals might escape. Just humor them until they're gone and hopefully salvage their attitude towards their stay.