DonM UPS is worse than USPS could ever be, on delaying (a possible early )delivery. I've tracked incoming packages, and see them arriving at the Chicago area hub, let's say, on Mon. night. Normally, that package would come to the local terminal later that night/early a.m., and be delivered Tues.. BUT, if the "scheduled" delivery shows the package "scheduled" for Thurs. delivery, it sits up there until Thurs. early a.m.. Historically, I believe they have never delivered anything ahead of "schedule", it is against their rules.
In fact, I'm getting such a delivery today. Scheduled for today, came into that hub Sun. evening. There's your bastards! 😁