NO -- They would not open!
I tugged and tugged and finally got one door to open so I could start my car and let it heat up !
I now am going in search of a rubber care product to put on my doors rubber seals.
A rubber conditioner or rubber care product is probably the safest option for long-term care of your rubber seals in the doors.
Here are some more tips --- http://www.wikihow.com/Keep-Car-Doors-from-Freezing-Shut