Questions

Hi! Ill be going to Universal studios for the first time on November 1st this year and im super stoked! However, I had a few questions regarding the upcoming experience.. I splurged on VIP tickets as a late birthday gift to myself with my dad but now im also taking advantage of the fact it'll be the last day of the season for Halloween haunt night and got general admission tickets for that as well. Since I'll be in the park already before the HHN event starts in the day, will I need to leave the park to re-check in for HHN? Or is there a way to get my pass for that inside while im there. In addition to that.. I know VIP day tickets includes free valet parking but because that experience will end at some point for HHN how would I go about parking with that? Im aware id obviously have to pay for the rest of the night but again, would I need to leave the park to have that situated or do I do let someone know ahead of time once I get there? I apologize if these all seem like dumb questions haha, ive never been there and want to ensure I know and have a set game plan to really go on with my trip completely stress free. I dont want to have my car towed or anything...

All help with my questions is appreciated, thank you! :D