If the petition is for the opening, altering, or discontinuing of a road or highway between two or more counties, it must be filed with the auditor of one of the counties affected at least fifteen days before any action is taken, and the auditor immediately shall transmit certified copies of such petition to the auditors of all other counties to be affected by such changing, discontinuing, or laying out of roads or highways. Each county auditor shall lay such petition before the board of county commissioners of the auditor’s county at its next meeting for action in the matter as provided in this chapter.