Thanks @OtterBooks, for a possible simple solution. My own solution is equally simple -- hold the power switch 5 seconds to blank the screen (this does NOT turn the K3 off to total-reboot status), then insert it into the cover. The power-switch restart is the same 1-2 seconds as from the 'screensaver.' I've never had an issue when doing this.
What continues to bother me, however, is that my freeze issues occurred after putting the K3 down and returning some hours later. It is frozen when picked up. Nothing I can think of would cause a build-up of static on an immobile cover lying on a table overnight...and yes, I did try grounding myself before picking the cover up once the posts here suggested a static issue.
I hope we receive more updates on the dryer sheet solution.
