phillippe park is not a centralized place.. you gotta zig zag through to get to it and i heard about several issues with "car meets" held there and I would not want to have issues.
Causeway is always an open place but then it will turn from a toyota meet to a ricer fest as everyone will pull their integrats and civpigs and ruin the fun
I will look into a few decent places to pull up, park and hang - maybe make a BBQ out of it.