You really shouldn't comment on an issue you know nothing about. The Ag-Gag laws have nothing to do with private property or private rights of action, they are

You really shouldn't comment on an issue you know nothing about. The Ag-Gag laws have nothing to do with private property or private rights of action, they are felony criminal laws criminalizing certain kinds of speech, and there's currently at least one Constitutional challenge filed by a plaintiff who was arrested and charged with filming a farm from public property.