Yay, she's still there!!! Went to see her tonight, and she was CERTAINLY at her best; had two arepas con queso, one arepa de chocolo, one grilled meat-on-a-stick, and (NEW!) one grilled sausage! Was as Incredible as ever. But:
Asked her directly what her schedule is, and apparently (at least for the summer) she'll be around every Friday and Saturday night (as usual) from about 10pm until FIVE IN THE MORNING. Seriously. This opens up whole NEW worlds of arepa-ishness. I can go find her nearly at dawn? This is Glorious!