I have a question about my brakes sticking from time-to-time. Here in California, we have been fortunate enough to have received a lot of wet stuff falling from the sky over the past several months. After driving in these conditions many times I do not drive my S again for 3-5 days, as I work from home. So, the car sits in our garage. When I go to leave after several days, the car will not move. I really have to punch the go pedal to get the car to back out of our garage. Every time it makes a rather loud clunk, and then the brakes seem to grate the first few times that I apply pressure to the brake pedal. Then the sound vanishes, and does not return until I drive upon wet surfaces and let the car sit for a few days. I presume that there is some oxidation on the rotors that develops while the "parking brake" is in effect when I place the car in Park? Is this why there is this resistance? Is this deleterious to the well-being of the brake pads and rotors, and is there something that I should do proactively to reduce this occurrence? Thanks!