the only time i have ever had a problem shooting was while i was snapping shots on the riverfront in front of the ren cen. security came by and told me i couldnt shoot the building and to move along. when i asked if the riverfront was public property they said no. i didnt want to argue with the guy too much, but they pretty much trample on photographers rights whenever they can. they bank on the fact that you likely arent going to put up a fight.