My advice....which I've done before!
Call tech support first, tell them your wife would really like to take advantage of VZW's fantastic 4G speeds...And seeing how much you like your phone has made her really want to give Android a try. Tell them your willing to pay the restocking fee, and blah blah blah...
They will most likely note the account, and send you into the store. Speak to the Manager and nobody else in the store and explain to them the same story you explained to Customer Service...
Honestly you should have zero issues. My lady had her Razr for over 30 days when she decided she wanted to switch over to the Nexus like me....We got an awesome Mgr that took care of everything in a matter of 15 min. Most of the time you get more bees with honey...Just be cool and you should have no issues.