Bumping an older thread, but I caught this one recently.

"Bust Out" was the Season 2 episode immediately after the Matt Bevilacqua hit. The episode starts out with the citizen witness picking Tony's mugshot out of the binder.

Later in the episode, the witness' wife reads in the paper that the murder involves high ranking people in the Soprano family. The witness, sufficiently freaked out, recants his story.

But in the beginning, Tony's mugshot clearly has him holding up the placard saying "A. Soprano."