2000 9-5 Aero Immobilizer problems.
 

Last night my Wife parked our 9-5 and shortly after was going to leave again but the Ignition as well as Shifter were locked. My SSID Screen doesn't work but the Security LED was blinking the Code for the Immobilizer. Heres what confuses me, everything I can find says the Ignition should still turn to the ON position but mine doesnt. We only have the one Key and no Key Fob. I dont know what to do so any help would be huge. Oh, I'll also mention were having some extremely cold Weather for Louisiana. Right now our Wind Chill is 10 degrees. Which is crazy cold for us. Im curious if this could be an issue?