Sounds like something I would do... lol.
That is pretty cool that you are hiding the Challenger from your wife like that! She is going to be excited... that is good for a few points for sure. You will have to tell what she does when you give it back to her!!
my wife hates my car... says its loud, shakes the windows inside the house, hits her head on the roll bar, not a big fan of it. If I had more of a driver, she would appreciate it more.