At the expiration of six months following the suspension or revocation of a speed detection device permit by the Board of Public Safety or, if no appeal was taken, by the commissioner or deputy commissioner of public safety, the governing authority of any such county or municipality or the president of any such college or university may, upon a change of circumstances being shown to the commissioner, petition the commissioner for a reconsideration of whether such county, municipality, college, or university should be permitted to use speed detection devices within their respective jurisdictions.