Well, I got my answer to why all of a sudden the reserved lot was no longer "reserved". Apparently, they expanded the general parking area and downsized the reserved lot by 1/3. The agents have been passing out flyers the past 2 weeks but being in a rush as always, I never grabbed one. My fault, I suppose.
This is unfair! I pay a premium for a RESERVED space! Why do I now have to come in extremely early, a total inconvenience to my personal schedule, just so I have a space to park in? What is the point then of paying a premium for a reserved spot??? I have my own schedule, my own life. I don't want to have to adjust it just so I park at BART to get to work. That is why people have the option of paying for a reserved spot!