It's most likely your supercharger clutch that has failed.

If your dealer has a supercharger assy on hand, and if he has a couple of real sharp Crossfire techs who have done the installation before, and if there is nothing else for them to do, then it's possible your car will be ready by Friday. Otherwise count on a week for a new supercharger assy to ship and another 4 or 5 days for installation.

$100 for a new supercharger is a bargain since they run $6000 or more plus installation costs.