Nothing in N.H. Rev. Stat. § 265:106 shall be construed to prevent the transportation under such rules as shall be adopted pursuant to N.H. Rev. Stat. § 260:5 by the director of those enrolled at summer camps or students, teachers, or employees of colleges and schools when it is for recreational or religious purposes; or prevent the transportation of employees of any town, city, county or the state, federal government, or any agency thereof, or of employees of the owner of such vehicle when in the course of going to or from their place of employment; or when transportation is in a vehicle approved by the director under N.H. Rev. Stat. § 266:7.