Turning the throttle back was the one thing I did not try. Lots of things happening fast so after the first three failed I hit the kill switch. My question would be that since it was still "stuck" after shutting it off and the only thing that cleared it was pulling the Maxi-Fuse would that not lead to the CC module itself? If the cable was bad/stuck, pulling the fuse should not have cleared it.
Just trying to think this through and replace what is needed to fix it.
It would seem as you describe. But it's not an absolute. Think of it this way:
The problem with these is almost always the cable gut sticking in the cable housing. That's why manually returning the throttle will pull it back. Doing so usually pushes the cruise cable back also.
But if it can still move at all if you leave it set for a bit the spring tension from the bellcrank on the throttle body will eventually pull it back also. So the time taken to remove the side cover and pull the maxi fuse and wait a bit and then check things out might also have been the time needed for the cable to get pulled back to normal.
Here's another way to check things out. Set the cruise control while riding on level ground but leading to an uphill grade. Watch as the cruise system adds more throttle pressure to maintain speed up the grade. That's all normal.
Then pay attention going back down the grade and back to level ground. If your speed is higher than it was when the cruise was originally set your cable is sticking. You'll know this because it was advanced to maintain speed going up the grade but then couldn't return after that advanced throttle position was no longer needed. Manually twisting the grip will usually pull the cable back where you want. This will also usually disengage the cruise in the process if you move the cable very far.
Keep one last thing in mind. There aren't many parts to this system. If you're just not sure do things in this order. Pop open the handlebar clamp and spray the switch with electrical contact cleaner than blow everything out well with a little compressed air. Do that first because it's pretty easy and absolutely free to try.
After that try replacing the cruise cable. It's a little more work to change (though not too bad) and is relatively inexpensive (around $35 the last time I bought one). So it's a cheap enough piece to try as a likely second guess.
After those two things it gets harder (replacing the switch and pulling its wires through the bars) or considerably more expensive (new cruise head). So start with easy and cheap and work your way up.
Good luck

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