I have had this happen also. When I was in high school we had the ice storm of 98 and i was out of school for 30 days. The first night of the storm i stayed at a friend's house near my HS. I lived 20 miles away and the next morning my dad's S-10 was a block of ice. Nothing like yours but i couldn't get the door open. I didn't have any tools so i grabbed the door handle and literally ripped it off the door. I ended up chipping all the ice off around the doorjam and using a leatherman to pull the wire inside the door to open the door. After starting the truck and running the heater full blast i was able to drive home after letting it run for about an hour.