They run so many passengers during the day (all sessions are passenger) that insurance for the passengers is needed, thus the $20.
Don't expect an email from Adam again until 1-2 days before the event.
15deg is awesome, street tires love it. I remember setting a 39 with less power, suspension and braking mods than I have now on 235 KU36, 12 months ago in similar weather (colder, the guys that had towed up in the morning were scraping ice off the race car).