I just walked in during business hours and bought tickets for the tour you should be fine doing that
Should be ok same day. Interesting place
Call I'd you feel more comfortable doing so. I agree that you probably would not have a problem if you just went there.
Your best bet is to call before hand.
When we got there is was 3:00 and they were selling tickets for the 3:30 tour. When we got done with the tour around 4:30, the next available time was 6:00. Keep in mind this was a weekday, also. I think it really just is hit or miss. They have activities to do while you wait and they also have miniature golf, but the golf is extra (not terribly expensive though).
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