How do I get a hold of management or someone that works there? I lost my cell phone there and soneone turned it in and I need to know when I can pick it up

I would look on the website first

I work in the concession..we are now open through the week just stop by the box office tell the man there you lost your phone and you want to come up and see if we found it and he will let you come up..someone is usually there around 7:30