I was there on Monday (2/10), here are my observations.
Several cars are broken and sent out with a traffic cone on the seat. That should be embarrassing, but Disney doesn't care.
The walk up to the ride (the right-side) was down and draped with a tarp. Guests were instructed to use the left side to get the the top of the ride... yes, the same side that guests have to go down to exit. There is masking tape running down the middle of the the ramp and small arrows crafted out of masking tape to direct guests. It is a boon doggle for sure.
My guess would be that the right ramp up to the top is what caused all the smoke. Something broke in there. Giving it's age,, I assume that Disney has to manufacture a replacement part from scratch to get it operational again.