You should post in the tech forum. If the metal key doesn't work then either it is the wrong key or the lock is frozen. My fob light always blinks and it works fine. If the lights on the car react then it is getting the signal. How cold is it there? Could it just be ice causing the problem? Post in tech.

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra