(b) In such action if the court finds that a defendant is threatening or is likely to do any act in violation of this chapter, the insurance law or the banking law and that such violation will cause irreparable injury to the interests of the people of this state, the court may grant an injunction restraining such violation. The court may on motion and affidavits grant a preliminary injunction and interlocutory injunction, upon such terms as may be just; but the superintendent shall not be required to give security before the issuance of any such injunction.