If any proceeding or action is commenced by the Attorney General for any violation of the provisions of this chapter, the running of the statute of limitations with respect to every cause of action arising under sections 35-34 and 35-35, and based in whole or in part on any matter complained of in the proceeding or action, shall be suspended during the pendency thereof, and for one year thereafter. If the running of the statute of limitations is suspended, the cause of action shall be forever barred unless commenced either within the period of suspension, or three years after the cause of action shall have accrued.