No provision of this article shall be construed to relieve any political subdivision of the state, in the absence of an agreement for payment of sums in lieu of taxes by the United States, as provided in this article, of the duty of furnishing for the benefit of a project all services which the political subdivision usually furnishes to property in, and to persons residing within, a political subdivision without a payment of sums in lieu of taxes; provided if sums in lieu of taxes are not paid within one (1) year after due, such services may be discontinued.
