In The Godfather part 1 where Micheal sets up a meeting with Virgil Sollozzo and the police officer just after the attempted murder on Vito Corleone, when they are on the way to the restaurant the driver makes his way to New Jersey as can be seen on the signage.
Then Micheal anxiously asks 'where going to Jersey?', then the driver quickly spins the car around going back to the original destination and Virgil Sollozzo pats the driver on the back and says 'nice work Lou'.
What is the purpose behind Sollozzo planning this? Did he simply want to see if he was being followed Micheal's men? I never quite understood that segment.