Shipping Rules Date Question

[Browzilla]

Obviously the robot must be postmarked by the 19th.
In section 4 of the manual, 4.9.4 reads "The crate(s) must be delivered to your team's initial event's drayage warehouse by Monday, Feb 25th, 2008."

However, our first and sadly, only regional in Milwaukee, claims in the 2008_WI_Shipping.pdf that "All crates must arrive at the Shepard Exposition Services Advance Warehouse (drayage terminal) by March 10, 2008."

Since we're in MN, we could have potential weather problems in shipping (just being cautious), so does it have to be there by the 25th or 10th? Or is the March date just for teams attending multiple regionals, so they have a different date since it would have to be somewhere else on the 25th?