Can you disable power steering? Have gushing.

Very impractical. You would have to remove the serpentine belt and that runs other stuff. For sure you will disable the alternator so the battery will run dead in about a half hour. On some engines the water pump is run by that belt and the engine would overheat in a few minutes.

If you drive it as is, the power steering pump will overheat and be permanently damaged from prolonged lack of fluid to lubricate it. It's very rare for a rack and pinion assembly to leak real fast. I would first suspect a popped high-pressure hose at the crimp or it has a split along part of it, or the return hose pushed off due to a spring clamp rusting off. Those are not serious repairs although access is difficult when it's not up on a hoist.