Sec. 5. (a) If there are several owners of burial rights in a burial plot, the owners may:
(1) designate in writing one (1) or more persons to represent them; and
(2) file the written designation with the owner of the cemetery in which the plot is located.
(b) In the absence of:
(1) the filing of a written designation of one (1) or more representatives under subsection (a); or
(2) a written objection to the interment, entombment, or inurnment;
a cemetery is not liable to any owner of burial rights in a burial plot for interring, entombing, or inurning, or permitting an interment, entombment, or inurnment in the burial plot upon the request or direction of a registered co-owner of the burial rights.