To be honest, I am curious as to what went down on your turbo, I have not seen a GMx turbo fail yet on a 6.5. Ive seen HX35/40's blow oil seals and whatnot.
these engines will run without the turbo connected to the intake, it just won't have much power and you;ll see black smoke out the tail pipe. as long as the oil seals hasn't blown out where it's spewing oil, if it won't spool due to it being locked up, pull the plenum off the intake and remove the short rubber hose between the plenum and the turbo. put the plenum back on and drive it home. just remember not to get on it too hard, accelerate slowly and you will eventually get up to speed to drive home.
the most common things that go wrong is the vacuum pump or a vacuum hose going to the actuator on the turbo.
if the oil hose has blown going to the turbo, you can trace it back to where it blew, pull it and plug the port or in a pinch, get a vice grip on the hose to stop the leak. then pull the air filter tube and jam a screwdriver or something in the intake turbine to prevent it from spinning. just be careful not to damage the turbine wheel. you can do this in a pinch for a short trip. stopping the turbo from spinning when the oil line is blown is just to keep you from damaging the turbo running without oil in the bearings.
let us know what happened and what you find, we all can help you fix it.