I thought I would update this thread, as the previous postings gave me the idea to get a ticket and cancel it.

A friend was flying through MSP today and I booked a ticket to Chicago, got through security fine and cancelled the ticket. Delta did make me call rather than cancel online. The automated phone system couldn't do it either, so I had to have them call me back so a human could do it. The automated phone system issue may be that I am recovering from a virus and my voice sounds like rocks being crushed.

When I was in the security line, one of the TSA guys was asking people what they were traveling for. I had an answer prepared, but I didn't end up talking to him.