Yes, he did. It was an ugly play. But keep in mind that things are not always what they seem. NFL passing offenses are about precision and spots. If you recall ever hearing Warner talk about what he did...he threw to SPOTS. Which means if his guy wasn't where he was supposed to be, Warner looked the fool.
On that particular play, there was a blown coverage. I know they were running a variant of the "Levels" play that the Colts loved to run with Manning. What I can't tell you is what route Pettis was supposed to run on the play. Bradford very well could have just missed him. Or Pettis wasn't where he was supposed to be.
Because viewing the play on Coach's Film, Bradford threw it as if he was expecting Pettis to run a flag(corner) route whereas Pettis never really made a hard cut. He just kind of faded towards the sidelines while running a go route. So I can't tell you if that was just inaccurate throw on the part of Bradford, a miscommunication on the part of either player or Pettis getting over-excited and not running his route properly.
However, I can tell you that they ran the same play later in the game with Cook in Pettis's place and Cook ran a flag(corner) route. It was actually on the play with worst pass I saw Bradford throw all year.(the ball that bounced off Whitner's hands into Cook's)
The blue spot is where Bradford threw the football in the first pic(the Pettis miss).
Like I said, we don't know for sure but I think it's worth considering. All I'm saying is that things are not always as black and white as they appear.