The administrator is authorized to inspect or survey the records of any agency, and to make surveys of records management and records disposal practices in the various agencies, and he shall be given the full cooperation of officials and employees of the agencies in such inspections and surveys. Records, the use of which is restricted by or pursuant to law or for reasons of security or the public interest, may be inspected or surveyed by the administrator, subject to the same restrictions imposed upon employees of the agency holding the records.