In the event the Commissioner shall find cause to believe that any person is violating this chapter or the rules and regulations promulgated by the Commissioner pursuant to this chapter, he shall make such investigation and have such hearings, before him or such person as he designates, as will permit him to determine the facts and then may issue a cease and desist order if he so determines. If such cease and desist order is thereafter violated by the person against whom it is issued, such violation shall constitute a public nuisance; and the Commissioner is authorized to seek, and the superior courts shall grant, injunctions against such person's further violating this chapter or the lawful rules and regulations promulgated by the Commissioner pursuant to this chapter. Such action for injunction may be maintained notwithstanding the existence of other legal remedies or the pendency or successful completion of a criminal prosecution as for a misdemeanor.