Section 543. Adverse possession; how affected by acts across a boundary line

1. Notwithstanding any other  provision  of  this  article,  the
  existence  of de minimus non-structural encroachments including, but not
  limited  to,   fences,   hedges,   shrubbery,   plantings,   sheds   and
  non-structural walls, shall be deemed to be permissive and non-adverse.
    2.  Notwithstanding  any  other provision of this article, the acts of
  lawn mowing or similar  maintenance  across  the  boundary  line  of  an
  adjoining   landowner's   property   shall   be  deemed  permissive  and
  non-adverse.