This blazer-wearing Mafia goon is not the brightest crayon in the box, though he manages a Nova Sicilia franchise in the Valley (a Los Angeles suburb). He misinterprets an order from higher-up thusly: "Jason sits back in his color-coordinated earth-tone swivel chair to consider the very real possibility that in a few days, he's going to be managing a whole region—or even better. One thing's for sure—this is not a delivery to be entrusted to any Kourier, any punk on a skateboard" (17.54-55). Um… guess again, Jason.
The delivery was totally supposed to be entrusted to a Kourier, since Uncle Enzo wanted to meet Y.T. personally. Luckily for Jason, this transgression is forgiven when he helps Y.T. out with transportation on Mafia jobs. He is not condemned to sleep with the fishes after all (as far as we know).