I know a kid who was a part time student, enrolled in a full time schedule, took the print out from the school to the ticket office, got his season pass, then dropped the classes he wasn't taking before the school would have locked him in. So, it can work.
No, but my wife and I went down to the court house and got married 5 months before the ceremony so she could get a dependent pass.
Why? My husband and I have different last names and we've never been asked to present a marriage license or anything. I've just listed him and my daughter all on the same application. She has his last name. No one ever questioned anything.
I use a college ID from my last semester, 3 yrs ago. I just argue at the ticket counter until they agree to let me get the student rate. You can't blame me when they charge $800 for a "hill" with 600ft vert.