Casual...they do provide blankets on a first-come-first-served basis. They recommend bringing along a sweater as well, just in case.
You are more than welcome to bring your own covers. Blanket, pashmina, sleeping bag.
You are encouraged to park on the 4th floor of the BLVD parking complex. There is also a designated ride-hailing spot for those leaving the venue and wishing to Uber/Lyft.
In the event of adverse weather conditions, ticket holders will be notified via email at least 3 hours prior to the event.