I'm by no means an expert in heavy metal exposure or health care, but I would say you should be fine. People used to drink water that was run through lead pipes for heavens sake, a 30 second exposure to a liquid shouldn't kill you.
Out of curiosity, how long was it in the wort? And was it in the entire batch or did you pull a sample?
Courage les garçons, et patience, vos femmes vont finir par apprécier la bière !