I live in the PNW and it rains a lot. The other day after a large storm I went to my boxster and the DS footwell carpet was wet. I pulled my car into the driveway, took out the seat and pulled up carpet out to dry. Then I checked my drains (all clear) and inspected the vapor barrier in the doors (all good). Today after one week of sitting under a waterproof car cover, I went out to my box and found some traces of water near the accelerator pedal. I am seriously confused. Any ideas?