Taking of emergency action. If, in the opinion of the Building Inspector, a violation exists which requires immediate action to avoid a direct hazard or imminent danger to the health, safety, or welfare of occupants of a building or to other persons or the environment, the Building Inspector may direct that such violation be immediately remedied or may take direct action on his own initiative to abate the hazard or danger. Any costs incurred by such action shall be paid for by the owner, occupant, or person responsible for the violation. The Building Inspector shall keep on file an affidavit stating with fairness and accuracy the items of expense and date of execution of action taken, and is furthermore authorized to institute a suit, if necessary, against the person liable for such expenses, in order to recover said costs.