Irvine Spectrum is another option. The far lot by target is always vacant and as long as no shinanagans happen I doubt they would care about 10-20 4runners. Last meetup I went to was at the Laguna hills mall, their renta cops just rolled by us on bikes and checked us out. They were very cool with what we were doing and didn't say anything to us.
The Irvine meadows/Verizon theater is another option as well. After 4:30 it's a ghost town. Cops will not chase you off if you are not jacking around. If there is a concert that day forget it. The bearded wonder who drives the golf cart will chase you or the scheduling manager Tiffany. I use to work on the lot and we would let people shoot video, fly model aircraft, car shoots, people learning manual. If you are respectful they most likely will ignore you when they are not renting the lot out.
I am down with a Thursday meetup, I will be returning from MT in May.
I wouldn't be opposed to a meetup where a pint can be had. :beer: