I had suggested a while back for a quick simple way to lock these controls or track in console because of this exact reason, the suggestion was to right click on the control (pan/volume) and select "value" and "set snap to the established level, so if and when you realize you've inadvertently moved these, double clicking (left) they will revert back to the snap level set. Otherwise if you could turn off the mouse wheel perhaps in Windows control panel, then you wouldn't be able to scroll console either, lol. I believe I also suggested then that perhaps a function, say like, holding ctrl/alt or shift while scrolling mouse wheel would only scroll console, regardless of where pointer may be.
I guess ultimately answer was good luck with that, LOL.
Cheers