chev2500hd- sorry it works out that you're drilling that weekend, but thanks for serving.
No real need to be a "regular" here I'd say- I'm not really, for one, and I am going to be there.
As for how to find folks...
Not so sure since I don't really know that parking lot too well, but I would say to look for some people hanging out around cars with doors/windows/trunks open looking at stuff for one thing.
My car is a silver Subaru WRX 5-door to help ID the meet.
If there is a corner of the lot that gets less use, that would make it easier to find everyone.