If you had.....
followed the link that they emailed a week or two ago and gone to your online ticket account you could have already purchased tickets. At that time they were saying that you would get your same seats if you requested them, which means that they were planning on it being reserved seating. If they have in fact changed it to all general admission seating then the only conclusion to draw from that is that they have sold very few tickets so far.
You could also get a parking pass on line, assuming that you had one for the regular season.