For those of you who are not local and will be traveling by car, the SP+ website allows you to book a reservation (HIGHLY RECCOMENDED) for your car in advance. You can park, then order a Lyft for a 10 min drive to the venue. Public transit or walking is also

This is another parking garage near Barclay's Center. It looks like you can't reserve in advance, but there should be plenty of parking available. You'll also want to grab a cab to get to the venue.