In the novel, Vito had advised his intimates to come to the wedding in a borrowed car.
He also advised some of the judges not to attend at all. If I remember correctly: he was somewhat pleased by Sonny's show of temper at the FBI guys because he thought it would make them believe that he hadn't anticipated their surveilance.
Ntra la porta tua lu sangu � sparsu, E nun me mporta si ce muoru accisu... E s'iddu muoru e vaju mparadisu Si nun ce truovo a ttia, mancu ce trasu.