My new truck (2009) has a fancy transponder chip in the ignition key. It's the only car I've ever owned with such futuristic hocus pocus, so I've wondered if it would allow me to lock myself out if I left that key in the ignition. Today while in town shopping, I learned that the answer is yes. Doh. I had a spare key made when I first got the truck. Then I lost it a week later and forgot to replace it. I found a random lockout service on Bing and called. The guy came out within 30 minutes and opened my door within 2 minutes. I paid him $45 and he was gone in another minute. He didn't check to make sure I owned the truck or ensure that I had any rightful claim to it. He never even asked my name. It was unnerving really. I made a mental note not to keep anything valuable in the truck ever again.
I learned in the early '90s, when auto theft was the national pastime, that there's no way to keep someone out of your car if they want in. I guess that still holds true today. I drove an old beater (76 Accord) back then and it never had the least bit of trouble. That taught me that the only sure way to keep your car is to drive an old Honda. I drove old Hondas back then and I still do today.
Be good to your 3gee!!