Moonroof Madness: My car has a mind of its own...

I've posted before about the peculiar rules by which my Honda Civic operates, and last weekend I added another inexplicably-designed behavior to the list. I had turned off the car while the moonroof was in the process of powering itself closed. To its credit, the moonroof continued to close even after I turned the car was off - this makes sense, as it was dutifully completing the command that I'd given which wasn't yet done. However, when one of my passengers opened his door - a rear door, no less - it stopped. Huh? Why should the car cancel a command by the driver - "moonroof, close!" - because of a totally unrelated action by the passenger? It's bewildering, yes - but even worse, I feel like my authority as the driver and owner of the vehicle has been usurped. Just like I have the power to give my rear passengers the child-locked-window treatment if I feel like it (heh heh), I should have my commands to the car be obeyed despite their interference - intentional, or as in this case, not. Poor design that causes inconvenience is one thing, but when it feels like it gives the product a mind of its own, complete with shifting loyalties, then it's a real problem!