Another Saturn Alarm Problem

I have an '06 Saturn Vue that I purchased in Sept. '06 with 28k miles. Last week at around midnight the alarm activated. After checking that no one had opened any doors I reset the alarm but the dome lamps wouldn't turn off. It was the first cold night we'd had here in Houston, around 38 degrees, so as I sat in the vehicle I cranked the engine to warm it up as I read the owner's man. While sitting I noted that the when I put it in drive to move it a little the auto door locks didn't activate, as a matter of fact I tried to manually lock them with the lock button and they would unlock themselves almost immediately. After the vehicle had warmed up I moved it into drive again and low and behold the auto door locks activated and the dome lamps went off. I shut it down and went back to bed. Took it to Saturn Southwest the following day & got it back with "could not duplicate problem" noted on my copy of the service receipt. The service writer said they reprogrammed the ecm & that should correct the problem. That night around 4:30 AM, which was in the 40 degree range...well, you guessed it, same problem. This is our 4th Saturn so I'm pretty familiar the the product. Any ideas out there? Thanks, Richard