what year is your v70? on the 850, there was a recall for the heated seats. the previous owners of the both of my 850's had never did them. now, on my daily driver, i had the dealer do the recall, the other one had racing buckets put in, so i didn't care. i would check to see if there were any recalls or serivce bulletins and get the dealer to do the repairs, that way you know that both of the fronts were checked out and no more surprised. good thing that you are alright. now, are you sure you weren't experimenting with any mexican food?
just kidding, glad you are alright.