Even at this late date it is better to get bulbs planted in the ground than it is to let them rot in a heated garage. As long as the ground is not frozen there is no reason to keep them out of the ground. Even if the ground is frozen, you can probably get potting soil and pot them up. Keep the pots at about 35°F if you can so that they root well. When they are well-rooted, bring them into for early bloom indoors.