Star Parking Options?

I always stay in a hotel when I do gorge fests, and so I typically will always add-on star parking. It's completely worth its weight in gold after a full day of dancing. But I'm not seeing anywhere that this is available for beyond (or bass canyon!). Does anyone have any idea if that's an available option? Or is it just already sold out and that's why I can't find it? I bought my passes a while ago and never saw an option to add parking then either. Thanks in advance!