The department shall continuously inventory all of its real property. When, in the judgment of the department any real estate acquired as provided in this chapter is no longer necessary for the proper operation of the department or highway systems, the department shall vigorously attempt to sell the property by advertising for competitive bids in local newspapers or by direct negotiations, but in every case of the sale or transfer of any real estate by the commission or the department, the sale or transfer shall be made public by publishing notice of it in the minutes of the next succeeding meeting of the commission. The commission and the department shall convey by deed, signed by the Secretary of the Department of Transportation and the Deputy Director of the Division of Finance and Administration, any real estate disposed of under this section. Any funds derived from the sale of surplus property by authority of this section shall be credited to the funding category from which funds were drawn to finance the department’s acquisition of the property. However, any funds derived from the sale of right-of-way, which the department has purchased, in excess of the department’s cost shall be distributed among the counties as C funds pursuant to § 12-28-2740.