67.627.  Regional cultural and performing arts district created — purpose. (St. Louis, city and county). — There is hereby created a "Regional Cultural and Performing Arts Development District" comprising any constitutional charter city not located within a county and any constitutional charter county adjoining such city.  Such regional cultural and performing arts development district is created for the public purpose of promoting, encouraging, and fostering the arts and cultural institutions and activities within its boundaries, and shall be deemed to be a public corporation acting in a governmental capacity.