The box office is at the north side of the venue, parking lot A ($20 pre-pay, $30 on site) is closest. That is, unless you have a handicap plackard, then H is closest.
Just get there before the show starts. Cheaper parking is a shuttle ride away at $10 and gets higher if you wanna park closer. Will call tickets are basically at the entrance - go to the box office one to pick yours up.
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