I'm dumbfounded.

Driving to work today I hit the mode button to go to the 6 CD changer and I go to the single disc instead. Hit it again and go to the radio. I'm like

? Keep doing it expecting different results...Get out at Dunkin Donuts, open the hatch and all looks well, cargo cover in place, everything looks as I left it. I actually had to open the compartment where the cartridge sits and zippo, ziltch, nada, NOTHING!
I don't understand. I am ANAL about locking the X. It was there Friday, the only place I've been is work, home, Dunkin Donuts.....
People suck.