When Joe, Mel and the kids arrive at the family home in Jersey, Joey says to his nephew they took I-95 the whole way, however I-95 runs the length of the East Coast from Maine to Florida. It's nowhere near Ohio. Coming from Toledo would be mostly a straight line to Secaucus (where Joe grew up). There would be no reason to be on I-95.
During the birthday party, the amount of liquid in the bottle of the Rabbit's Brew changes between shots.