SECTION 7.07. ILLEGAL CONTRACTS VOIDABLE.
   Whenever any contract made by or on behalf of the City is found in any court of competent jurisdiction to be illegal, and the City has received the goods or property involved, Council may order the return of the goods or property and rescind the contract, or order them retained, paying for them at their fair value, provided such value is not in excess of the contract price.
   If payment has already been made, the City shall be entitled to recover the excess, if any, over the fair value.