Well, it seems that Singapore, as a model city state in that article, has much stronger military forces than many much larger and more populated countries.

I think waterlesscloud was alluding to the political preferences of Bay Area residents.

We would shut off OC's GPS access and their fleet of armed SUVs would be useless - they'd never make it beyond LA

You don't have to turn off their GPS for them to get stuck in LA's gridlock and miss the invasion time. They are their own worst enemy.

Self-defense is cheap. Iraqis and Afghans seem to find a way to do a pretty impressive job without throwing buckets of money at the problem. (There's probably some significant outside funding in each case, but still.)

Is military funded on a per-state basis in US? I would expect that to be a federal matter?