it seems all the restaurnts in california have changed to plastic ketchup bottles in the last six months

Same here in North Carolina, although it's been longer than 6 months. Are they also the opaque plastic bottles in CA, too? So that no one can see when they're getting empty, which means that they always are? That really pisses me off. (And I doubt that it's a health thing. I imagine that Heinz just started offering restaurant plastic packs less expensively than glass.)