I remember right before the play, the crawler on the bottom said "3rd and 5" but the yellow line clearly was 6 yards from the line of scrimmage. THEN he made 5 yards (not 6) and they gave him the first down.

I DON'T know ... I think it was probably one of MANY MANY mistakes in spotting the ball all night.... BUT there is also the possibility the yellow line was wrong.