Haven't been to the last couple Impala Nationals but in the past my car did have to go through a safety check before being judged.
While at Kalamazoo I still can remember Ron.M asking me to push in the cigarette lighter to see if it worked. I said "cigarette lighter?", I had never checked it after doing my frame off. Needless to say I lost points that year because it didn't work.. WORKS NOW though after putting in a new element.
As far as judging this is my input, I dont think its fair to have some one judge my car that has a car in my same class. (this has happened and it happened at the Impala Nationals)
Have a great day,Ron.H