The commissioner may request any railroad to provide such information as is reasonably necessary to carry out the purposes of sections 222.46 to 222.54. After a reasonable time to comply with the request, the commissioner may make final demand for the requested information. If the information is not provided within 60 days of final demand the commissioner may issue a subpoena to compel production of the information. The commissioner shall exercise all necessary caution to avoid disclosure of confidential information supplied under this section.