You don't even have to go to Montana. Some of my neighbors in Oakland have been beefing with a local restaurant/nightclub that keeps blocking off access to public waterfront and sends beefy rent-a-cops to intimidate people in the public space.
Edit: Interesting, I dug up some zoning documents from the restaurant, and the Bay Conservation and Development Commission specifically called out the actions they are doing now (blocking the trail, blocking public access decks) as violations on page 4.
[1] http://www2.oaklandnet.com/oakca1/groups/ceda/documents/agen...