Even if you pull one, it will be a problem, due to friction, and that they may have taped the bundle at various points, so that it would be hard to back pull. I would try the fish tape, then go from there.
I assume you've already completed this, but if not. Pull from the top down and use wire pulling lube, it should go fairly easy. Unless of course like stated it was taped, although hopefully they knew better than leave wire taped inside a pathway, that is something any data guy should know not to do.
Also the best fish tape for plastic tubing (smurf tube) would be a nylon coated metal fish tape.