I cannot speak for Kansas, but I know in here in Chicago, when Millennium Park first opened in 2004, commercial and professional photography/videography was prohibited without a permit. After many publicized incidents of tourists, residents, and students being hassled, there was public outcry, and the need for permits was dropped for all but large group or equipment intensive shooting. A friend of mine who shoots weddings and on-location modeling said that since that time he's only needed to buy a permit once, as part of the media crew for a corporate sponsored event. But for weddings, modeling, and prom shots, he's never been questioned.
You will still need to pay a licensing fee if the images of the Bean and other Millennium Park sculptures are used and distributed commercially.
I'm sure other places operate under this premise as well.