In addition to all other rights conferred on an obligee and subject only to any contractual restrictions binding upon him, an obligee may:
(a) By mandamus, suit, action, or proceeding at law or in equity, compel the authority and its members, officers, agents or employees to perform every term, provision, and covenant contained in any contract of the authority with or for the benefit of the obligee, to carry out all covenants and agreements of the authority, and to fulfill all duties imposed upon the authority by this part.
(b) By suit, action, or proceeding in equity, enjoin any acts or things which are unlawful and in violation of any of the rights of the obligee.
(Amended by Stats. 1951, Ch. 1388.)