Whenever any specific appropriation of money has been made by the General Assembly or by any community or corporation as provided in § 7-121, each agent, commissioner or executive officer of the state, except as provided in sections 4-87 and 4-99, or of any town, city, borough or school district, who wilfully authorizes or contracts for the expenditure of any money or the creation of any debt for any purpose in excess of the amount specifically appropriated for such purpose by the General Assembly or the community or corporation of which he is agent, commissioner or executive officer, unless such expenditure is made or debt contracted for the necessary repair of roads or bridges, or the necessary support of schools or paupers, in cases arising after the proper appropriation has been exhausted, shall be fined not more than one thousand dollars or imprisoned in a community correctional center not more than one year or both.