We attended the MNSSHP on the 14th and left early because of the rain and all the cancellations.
When we got onto our bus alot of people had these postcard type things that they were handed when they exited the park.
This gist of the card was that as a courtesy they would let you use your event ticket for a time period of 1 year for a 1 day park admission.

Did anyone else get this postcard? I am trying to figure out exactly how to use it and no one I speak to knows what I am talking about!