If the amount of an award in a condemnation proceeding is less than that deposited with the court or represented by a certificate of deposit, and the person or persons entitled thereto have received a distribution pursuant to § 25.1-310 of such funds, the authorized condemnor shall recover (i) the amount of such excess and (ii) interest on such excess at the general account’s primary liquidity portfolio rate. If any person has been paid a greater sum than that to which he is entitled as determined by the award, judgment shall be entered for the authorized condemnor against such person for the amount of such excess and interest.