A defendant charged with a misdemeanor may demand trial by jury by filing a written demand therefor not later than ten (10) days before his first scheduled trial date. The failure of a defendant to demand a trial by jury as required by this rule shall constitute a waiver by him of trial by jury unless the defendant has not had at least fifteen (15) days advance notice of his scheduled trial date and of the consequences of his failure to demand a trial by jury.

The trial court shall not grant a demand for a trial by jury filed after the time fixed has elapsed except upon the written agreement of the state and defendant, which agreement shall be filed with the court and made a part of the record. If such agreement is filed, then the trial court may, in its discretion, grant a trial by jury.