(1) an emergency requires immediate delivery of the materials, supplies, equipment, or performance of the services; or
(2) repair parts, accessories, or supplemental equipment or services are required for supplies or services previously furnished or contracted for; or
(3) professional, financial (including financial printing) or other expert services or work are required and the Authority shall deem it best in the interest of good administration that contracts therefor be made without such advertisement; or
(4) prices are noncompetitive because there is only one source of supply or because regulated under law; in such case the purchase of such materials, supplies, or equipment or procurement of such services, may be made in the open market in the manner usual in commercial practice. In the comparison of bids and the making of awards, due consideration shall be given to such factors (in addition to whether the bidder has complied with the specifications) as the bidder's ability to perform construction work of the kind involved in the construction contract under consideration; the relative quality and adaptability of materials, supplies, equipment, or services; and the time of delivery or performance offered. The Authority may prescribe rules and regulations for the submission of bids.