No, that was one single Marriott and it was the conference center -- they were trying to force exhibitors to pay outrageous internet fees, not hotel guests.
The fine was for disrupting wifi hotspots in the convention space at a single Marriott, but Marriott then petitioned the FCC to allow them to do the same for any guest on their property, including properties without convention spaces[1]. The FCC turned them down.
(I've amended my original post to include a link from the conclusion of the whole affair)
