No member of Council, officer or employee shall sell goods to or render remunerated service to the Municipality other than services performed as Councilmen, officers or employees, except under the following conditions:
a.) Where an emergency exists and is so declared by ordinance of Council, and the vote of the member of Council in question or the decision of the officer or employee in question is not required to approve the action taken, or
b.) Where the action taken is by competitive bidding, and the member of Council, officer or employee is the lowest bidder.