If you can reasonably get to the venue by registration time, ( taking into account drive time , mapquest it, which I assume you can do because you have to be 14 to post on Chalkbucket), then it might actually be good for you to have something else to do prior to your meet to get your mind off the competition. Be sure you have your hair done, and meet bag is packed, with a healthy pre- meet snack ready to go in a cooler so you can hop in the car and drive directly to the meet.
If there is no way to physically drive to the venue in 30 minutes, then, it is not reasonable to be late for your meet. Gymnastics is an individual sport, but also a team sport, so you need to report at your assigned time.
By the way, Good Luck at States!