I'm interpreting P1 to mean...If you are a landowner and are checking on your land, you are exempt from paragraph 1, regardless of whether you have a firearm in your possession. Yes?
If not then none of the excepted persons, including LEO are exempt. Lol
Yes, if it is your property you are fine.
That said if NRP rolled in and asked what you were doing and you told them “hunting deer on my property” well, you get what you get.