If there is a parking garage, they always (?) have stairways in the corners of solid railing to lock up to.

That's not a guarantee that you won't be hassled, though. I was given a written parking violation for doing that at a Las Vegas hotel I had a music gig at.

http://bikeforums.net/attachment.php...hmentid=406971

Just lock the bike to the pole holding the handicap sign in a parking lot.