What's causing my MacBook to freeze and reset keyboard settings when I bring it back from a long sleep?
I managed to solve my issue by downgrading from Mojave to High Sierra (using this procedure).  It was very difficult to do, and I was very unsure if Apple would let me downgrade, but once I did it the freezing issue went away.

I've had coworkers inform me that they've recently upgraded to Mojave with no problems, so whatever issue I encountered may be fixed.  However, due to all the pain I've gone through with this, I'm sticking with High Sierra.