Thanks for all the advice. This was one of those times when not answering the question was actually better then answering it. I assumed the valet key had a chip in it as well and couldn't be made smaller, but if it doesn't, I will get just a metal one made up for my wallet.
As far as the auto lock. I know our cars don't have it, but I can't figure out what happened. I also know our memory plays tricks on us, so maybe I didn't hear all 4 doors lock, just the drivers. But I still can't figure out how even that would have happened. Oh, well. I guess it's just a live, learn, and move on thing.
Thank you all again,