Send her a 'reminder' and have her refund the overnight shipping costs. If she couldn't ship it NBD then it should be her repsonsibililty.
I've had ten times the problems with FedEx than UPS. FedEx in Duluth was especially bad. Every time something was shipped to me via FedEx, I had to go to the hub in Superior to pick it up, since 214 Arrowhead Road apparently doesn't exist. Or its 15 miles west of Hermantown on Arrowhead:???: I know that a lot of FedEx stuff is delivered by private contractors. They buy and maintain their own vehicles, have contracts on what they get paid per delivery, and what not. I don't like it when they guy delivering my stuff is paid by the delivery and wants to get things done as fast as possible.