I've bought plenty of tickets off stubhub. For situations like this, the seller has 24 hours from purchase to drop them off at UPS. I just sold some from the Omaha region to a Wichita St fan last night and dropped them off today. They are then shipped overnight automatically. IF the seller doesn't comply with the 24 hour rule, you are not obligated to buy them anymore. It's the sellers responsibility to get them out within 24 hours.
Also, when I've bought tickets for certain things out of town, I have the seller ship them to hotels I'm staying at. At time of purchase, you just have to list the address you want them shipped to.
At some point they will open up LMS (last minute service). Those listings don't go live until the seller has dropped off the tickets at the stubhub location. So once Wednesday hits, the only way to get tickets on stubhub will be to go through the LMS location. Buy online and pick up at LMS location. For Big 12 tourney, it was at the Marriott, a few blocks from the Sprint Center.