I meant to update this thread last week, but totally forgot. I talked to my friend about this last week. Among the signals she referenced were:
680 I think she said Hamelton and Atlanta usually mix, though that night and for a few days after there was a third station in the mix, we suspect KNBR.
820 WNYC, not a regular in that area.
Someone else mentioned KYW, apparently that's a regular at night for her, as is WBZ.