Since my hands are shaky and my phone camera is not spectacular, the picture came out fuzzy. But here's what it says:
VIDEO AND PHOTOGRAPHY OF ANY KIND ARE PROHIBITED.
My brain, however, switched some of the words so that when I looked at it I saw this:
VIDEO AND PHOTOGRAPHY ARE KIND OF PROHIBITED.
Ha ha. :o)
The odd thing about this message is that there was another message shortly thereafter, which read something along the lines of, "No flash photography because the flash is a danger and distraction to the performers." This implies that non-flash photography is ok, but we know from that first message that all photography is prohibited. Very confusing conflicting messages.