The state executive committee shall adopt rules concerning the voting procedures for the convention. If the state executive committee fails to adopt rules:
(1) the delegates selected by a particular county or senatorial district convention who attend the biennial state convention are entitled to cast a number of votes equal to as many delegates as that county or senatorial district convention was entitled to select;
(2) a person may not vote a proxy for delegates from more than one county or senatorial district; and
(3) a person who votes a proxy for a delegate from a county may not do so for a delegate from a senatorial district and vice versa.