I don't think you can get them before the park opens. The process is easy though. Buy online, print off receipt, they scan it to let you in park, go to season pass building where they take your pic and give you permanent season pass. Keep your pass each year so when you buy online in the future they will just reactivate your pass. No lines!
We bought our tickets online
Not sure, got mine online while standing at the ticket booth,they went to my email.
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