You are a minimum of 2038 miles from him. The danger of being around Dave is not that he will steal something from you, it's that he will make you look (or at least feel) stupid.

If you can't get comfortable with that (as most of the rest of us have), you may want to reconsider posting on this forum, cause it aint gonna change.

Fact is, you have made the car somewhat easy to steal. All that is needed is a mechanical ability to get past the locking mechanism. You defeated the REAL roadblock - the fact that the car's "immobilizer" (a STUPID name for it) has been, in effect, disabled, means that someone with mechanical ability to get past the physical lock can now drive the car off.

Having said that, I have thought of doing just what you did, but since I have two keys, there is no reason to do so.