I just called both UPS and Apple. For those with the UPS exception showing in their tracking who live in the Toronto area, UPS and Apple say deliveries are rescheduled for Monday. UPS was blaming Apple, and when I called Apple the customer service agent said that something went wrong in UPS' system and required a second customs scan which is what is holding up delivery. UPS said all the trucks have been deployed and the agent said she was 99% sure it would not get delivered today.