Again it comes down to - is the land posted or not? If not, I'd leave a note - but would not take the stand. Misunderstandings occur, especially if the property has changed hands fairly recently.
However - if posted - I'd take it - NO NOTE, NO EXPLANATION - nothing. I doubt you'll have to worry about them again - I took one down once - no problems, no confrontation.
I would not prosecute - on the basis of a stand on my property alone. If other issues were at hand like vandalism, etc. Different story. I think most bowhunters generally are not this type of person, and likey used poor judgement.