Put bike on roof and forget to put the wheel in car. Been there done that. Thankfully it was still laying in the parking when I returned. (And I didn't even run it over while backing out. Whew!)
I tried to look on strava flyby to see if anyone was in that area but it doesn't work too well at work. @Mountain Bike Mike would you check my last ride at hartshorne for me? It was found in top lot.