In addition to the powers provided for in Chapter 1, the department may apply in the name of the State for relief by injunction to enforce the provisions of this chapter or to restrain any violation of this chapter. In these proceedings it is not necessary to allege or prove either that an adequate remedy at law does not exist or that substantial or irreparable damage would result from the continued violation. The director, employees, or agents of the department may not be held personally liable for bringing an action pursuant to this section.