Whenever any agency required by this chapter and the rules and regulations adopted pursuant to this chapter applying to the purchase of supplies, materials, or equipment through the authority shall contract for the purchase of such supplies, materials, or equipment contrary to this chapter or the rules and regulations made pursuant to this chapter, such contract shall be void and of no effect. If any official of such agency willfully purchases or causes to be purchased any supplies, materials, or equipment contrary to this chapter or the rules and regulations made pursuant to this chapter, such official shall be personally liable for the cost thereof; and, if such supplies, materials, or equipment are so unlawfully purchased and paid for out of the state funds, the amount thereof may be recovered in the name of the state in an appropriate action instituted therefor.