As much as I like BJ's pizza and beer, I don't think it's really the best place for a meet and greet. I've only gone once without having to wait for a table, it can get a little pricey, and I don't know that they'd really be set up for what we need. I think they'd want us to show up at the same time, wait for a table (reservations only for groups that show up with 10+ - no making a reservation for 10 and showing up with 9), and leave.
There are a Pizza Hut and a Round Table on Alamo Rd in Vacaville, appx 45 minutes from Sac and an hour from Coast Guard Island. I also saw a TGI Friday's and think that might have potential, being a more casual restaurant.
13th oughta be cool, maybe a little short notice? Or I've just barely been able to get online for the last week....