All property of a municipality, including funds, owned or held by it for the purposes of this part and part 43 shall be exempt from levy and sale by virtue of an execution, and no execution or other judicial process shall issue against the same nor shall judgment against a municipality be a charge or lien upon such property; provided, however, that the provisions of this section shall not apply to or limit the right of obligees to pursue any remedies for the enforcement of any pledge or lien given pursuant to this part or part 43 by a municipality on an urban renewal project or the rents, fees, grants, or revenues derived from these projects.
§ 7-15-4260, MCA