My mind was jumping to all sorts of conclusions because I've never heard of Tower of Terror breaking down.
It has RCS issues and sensor trips happen far more than things actually breaking. It is these that normally cause downtime. Depending on the problem you will be evaced (last resort) or spieled to wait as they try to bring the ride back up.
If its any consolation our AGV stopped right on the starfield door gap. Got some good video and pics too