I just saw the post about this by TxMike on refstripes and he linked to a YouTube clip.
YouTube - Fresno State vs. Illinois 2009 2-point Conversion
Looks pretty clear on the slomo replay that the lineman was on about the 3yd line (2yd line at worst) when he gets the ball and he had been engaged in blocking a defender. I've got no Ineligible downfield.