Nothing in this part shall in any way be deemed to:
(1) alter the terms of any agreements made with the holders of any outstanding notes, bonds, or other obligations of the municipality;
(2) authorize the municipality to alter the terms of any such agreements;
(3) impair or authorize the municipality to impair the rights and remedies of any creditors of the municipality;
(4) authorize any municipality to do anything in any manner or for any purpose which would result in the creation or incurring of a debt or indebtedness or the issuance of any instrument which would constitute a bond or debt within the meaning of any provision, limitation, or restriction of the constitution relating to the creation or incurring of a debt or indebtedness or the issuance of an instrument constituting a debt.