We got here at 4:30pm because the website says they close at 6pm. The front desk woman told us they close at 5pm and we only had 30 minutes. She was very rude about it and said she doesn't know who makes the website with the wrong info. We were leaving the next day so we went anyway.
She went on to tell the next customer that the carbon monoxide in the place was terrible, like a warning.
At 4:57pm we exited and went to the gift shop and not 60 seconds later the woman informed us they were closed and we needed to leave.
The collection itself is really neat and the gentlemen working there were very friendly.