Needless to say, the bottom door (drawer) was practically popping open when we arrived. The other tech ran out to his truck and reappeared with a small sachille containing a Steamer - We proceeded to melt the ensuing glacier using the forced steam vapor from this hand held "genie bottle". It worked fantastic!! did not cause the freezer liner to melt, and were able to control most of the runoff so as not to flood the kitchen via the drain pan.
If you haven't seen one of these babies in action, you may never use your heatgun again (at least for this purpose)