Just mailed our K1 packet using USPS Express and sent it to the wrong address I believe. I just used the address posted on the uscis website for usps as I thought using express meant it got there faster. Will this be an issue? I mailed it to the Dallas, TX 75266 P.O. box instead of the Lewisville address(I think they should be more specific about express since express is USPS. But my package is currently sitting at a post office in Dallas, TX 75260 available for pickup.