Closest handicapped parking is directly East across the street at the Salt Palace, enter on 300 West between South temple and 100 South. Enter main entrance of Vivint arena on the North East side. price for parking varies with The event, from $5-$15.
They have multiple entrances... Mostly on the East side of the building. If you need handicap parking i would look at the parking garage for the Gateway Mall across the street to the west.
The main entrance is on the north east corner. The closest parking I know of is across the street, it is paid parking usually. And to be honest I'm not sure if they have handicap accommodations there either.
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