The Minnesota Supreme Court says no. Since the public paid in the neighborhood of 186 million of the cost to construct it, they say it in no way can be considered private property. And I thought Massachusetts was bad.
http://www.citypages.com/news/heres-why-mall-of-america-is-considered-private-property-6566560
...n 1996 the Minnesota Supreme Court ruled the free speech protection written in the state constitution “does not apply to a privately owned shopping center such as the Mall of America, although developed in part with public financing” in State v. Wicklund...