HELP - 1999 - Everything flashing......
 

First day with my 911 coupe and .... Woke in the night to see the lights flashing in the driveway????? Everything was blinking on and off - I think the headlights and interior lights were flashing..... I ran out with my key and the doors were locked - I pressed the button on my remote and it seemed to stop it - HOWEVER, now I can't sleep because I want to know what would cause it....

Any thoughts on what would cause this????