Dear random coworker I have met twice,
Thanks for throwing me under the bus. Instead of emailing my boss to say "We were too busy to get to that," you said "We were too busy to get to that, and Jane said that you all were in a similar situation anyway."
Um... For the record? I ran into you in the alley when I was walking into my building. You started saying how busy you were and how badly you felt that you hadn't gotten to our project. I said, "oh, I can understand that. It's a busy time of year."