The quickest way Chris, would be to use an allen wrench to pull the four bolts under the column (that hold the column to the dash) and pull the steering shaft coupling near the footwell. This will enable you to kick-steer the tires.
If you are not in a hurry, you can pull the column and remove the tumbler and get it to a locksmith.....
edit: If your mom is sure that the trunk key is the same as the ignition, you can pull the trunk lock out and take it to a locksmith....a lot easier than messing with the column, as you can remove the trunk lock in under 2 minutes.