This is the latest exception listed on my tracking number....
"SHIPMENT IS HELD TO VERIFY COMMODITY DESCRIPTION WITH THE CUSTOMER FOR CORRECT CLASSIFICATION"
Having formerly worked with UPS, this simply looks like a delay created for the special delivery instructions by the customer, that being Apple, not you. Remember Apple is considered the customer since they are the ones who solicited UPS for services. You (and I) are called the consignee.
If all these iPads are in Kentucky and then subsequently put into the UPS system for distribution, it would not matter when Apple requested delivery, they would start showing up on tomorrow, Thursday, etc.... Looks like UPS is timing the release of the shipments into their system so they'll show up on 4/3, especially with the chosen level of service. This is how they do it. Local centers rarely get involved in holding packages, their goal is to clean out the delivery centers and trucks ASAP.
For better or worse, the UPS delivery system is a machine where packages in motion tend to stay that way unless otherwise altered. Think of it as a living animal with one purpose.... deliver packages!