I think the Thank You card should DEFINITELY go to this woman who is helping you out, rather than the team. Personally, once I get the jersey, I'm going to send my player a little email. Not a thank you, but a "hey I'm the person who bought your game worn jersey" sort of email. But, if any thanks are necessary, it's to you and to this woman at the bookstore who is arranging it. You and she have gone above and beyond the call of duty to get us these AWESOME jerseys. If we are able to get them signed, I guess a thank-you to the team would be in order, too.
Also, if you need help with shipping, I can take the jerseys from the Minneapolis/St. Paul area and hand them out to people here.