Sorry for the necro...

I wasn't aware the shop had closed. If you're still looking for So. Cal Vintage, your best bet would be to check out Frank's in Industry, if they're still in buisness. It's a wholesale warehouse for collectors and they do hold MTG tourny's there. They were only open 2 days a week but it's a good place to get contacts.
If he's still there Mike is a great guy and a very fair dealer, he also was working on getting a storefront so that's an option. There is also Shuffle and Cut who deals there. Scott can be an aquired taste, Matt tends to be more personable.
Tracerbullet used to set up much of the Vintage scene and if he's still playing could help you out.
Other than that, I'm not sure if there are any new shops around the area. We did make the trip up north to Eudemonia a number of times. Great people there, and alot of fun.
As far as the altercation, the owner of the complex was having cars towed from the parking lot late at night. There was alot of people parking there to go to the bar down the street which had limited parking. Apparently letting someone know of the situation was deserving of being run down.
Juggernaut, if you're still around, lol I don't even remember that situation, so I can't really comment to much.
Shout out to Pat! Hope all's going well with you. Also a shout out to John, Rob, Chris, Gio, Josh and everyone else from the old days.