I had same problem. Here is my story:
1. Drove car to airport in heavy rain on Dec 25 and temp was about +6oC
2. I always use E-Brake since, I already got a speech from mech that when not used, it causes problems (don't remember if it was rusted brake line???)
3. One weeks later (Jan 1st), I come back from trip, and temp was at -20oC, and car was not touched for 1 full week, and parked in outside parking lot.
4. When, I arrived to car, first think I did was clean snow and start motor
5. Since I had a new battery, no problem with start, but engine was really idling rough, I was afraid it was going to stall. I revved it a few times to help, but after 5 minutes no luck
6. At this point, I'm ready to drive car, and my only way out was in reverse. Car was parked in front of me.
7. Car was not moving, and back starting to lift. I also starting to notice a burning smell
8. I waited a few more minutes to think my options, I analyse free space in front of car, and I only had 3 inches
9. Tried reverse again, and still no luck, and back of car was lifting
10. At this point, I had no clue how I was going to drive wife + 3 kids home, not much support on Jan 1st, 600pm.
11. I decided to try anything, played with brake pedal a few times, and also played with e-brake a few times, and still no luck with reverse
12. I take a chance and put car in 1st gear, and was very careful and was able to hear a click and fortunately it moved only 2 inches
13. Put her back in reverse and care started to roll
14. Car was still rough
15. After 15min on highway, rough idle was gone and car started to feel normal again....
What an experience this was....
Good luck!
Sergio