Just looked filter fine, few leaves in my face. Carpets are dry. Think it may have just been where snow fell in the car and made the carpets wet at the time then it warmed up for 2 days then it got icy and then the inside froze. If it comes back next week I will be annoyed as no one seems to have any ideas what else it could be as never had this before and people at work with older cars and craper build (Rover and Pug and Citrons) have not had this happen to them.
i get this somtimes where i get out of the shower and shortly after get in the car where im still well hot and my hairs slightly damp it condensates my windows in the car maybe that could be an answer with the cold air and your body temprature being high.
lol thats not ment to sound weird.