Preregistration is appreciated but not required. Vehicles can be brought to the grounds prior to the meet, there should be security there from Thursday on. I used to leave some of my Studebakers there year around and never had a problem.
The gentleman who handled the antique car display for many years passed away last year, I am not certain who has replaced him. We could certainly get together for a meal, but it would have to be in the evening after the displays shut down as I will be manning my exhibits.