Please do not let this happen to you. If you have the time and stubbornness please push the issue of Photographer’s rights as far as you can.
Trey Ratcliff of Stuck in Customs was harassed recently in Atlanta’s Centennial Olympic Park trying to take photos of the World of Coca-Cola museum and told that he was not allowed to take photos of the building.
I will be getting in contact with management of the museum and see if I can find out what their policy actually is.
Here is a link to Trey’s blog post: http://www.stuckincustoms.com/2009/08/09/nearly-getting-arrested-in-downtown-atlanta/