Encino is a fairly nice area, so I'm surprised that happened there. Perhaps the sunglasses were too visible, I dunno. My sunglasses are usually pretty visible, but they are also fairly cheap (but they work well).
I hear that unless your up in the hills, anything can happen in LA. I had been wondering where Mr. Not So Moderate lived, Encino sounds more like a family style suburb than a cool, young person neighborhood from my admittedly limited research of it. The only area of the Valley I really looked at was Studio City and then decided that I'd much prefer access to decent public transportation. Silver Lake caught my eye because you can get Silver Lake, Echo Park, Hollywood and Downtown all fairly easily.
Let me know if you have any advice/warnings. By the way, are you permanently in Tennessee, or moving back to California soon?
You're a dumb if you leave your car unlocked while parked though.
Why would anyone leave their car or home unlocked, no matter where you live? "Better safe than sorry" isn't a well known cliche without reason.