Please make sure you are prepared for a very hot weekend! It will be in the upper 90s with little to no clouds. The only outside food and drink you can have is a sealed water bottle, so bring a cooler for your car if you need to! (You can come and go freely.) Bottled water inside will probably be very expensive.
Anyway, please be careful because the conditions will be perfect for heat exhaustion, unfortunately. I predict some fainting. Stay hydrated and get whatever shade you can!! And bring a blanket to sit on, because they are not allowing chairs.