I've always wondered if I blindfolded myself for a few days and clicked a lot, if I'd pick up echolocation. The key is, though, for it to be useful is I have to be able to take off the blindfold and retain the skill.
I know blind people who wish their echolocation skills were better.
What I am trying to say: expect months or years for training, not days. Besides, it is not only blind people who have excellent directional hearing, conductors are forced by their trade to be able to point at the fiddle player they want to correct. So it is definitely a skill which can be picked up. But it takes some years to get to a level where it is useful.