This leads to a question I have always had. How would you hide an "intelligent" key in the Z?
Last year, while we were in Moab, Utah, my G/F lost the intelligent key to her Toyota. I got that sinking feeling that I should have hidden a spare in the car. I made many calls locally and realized just how screwed we were.
A day later, the key turned up (kicked way under the hotel bed). WHEW!
But I have learned the lesson. Now, I have the spare "mechanical" key hidden on the exterior, and the spare "intelligent" part hidden inside, with the key's battery removed and hidden inside as well.
Life was so much simpler in the good old days.