UDP and new phone via Amazon


I bought an S5 through Amazon hoping to use the SIM from my Droid Maxx to avoid any interaction with VZW. Come to find out, the SIM from the Maxx is a Mini, and the S5 requires a Micro. I can't find an adapter locally. I could order one but that would take a few days to come in.

Am I creating any problems going to VZW for a new SIM? How much do they know about me buying a phone from Amazon? My account shows a new contract end date based on the new phone purchase but as long as I don't use the SIM that came with the S5 I shouldn't have an issue losing my UDP.

Wondering how to handle this. I want to get my new S5 up and running now.