Did it this morning - agreed it didn't hurt, but I got the "your application is under review, wait 1-2 weeks for a letter" from the agent. I asked her if they needed anything, and her response was, "wait for the letter". The automated line continues to say "2 weeks".

So my guess is it's something related to verification, whether that be my address, identity, or income. If I was denied, I assume she would just say as much over the phone. It is annoying as snail mail from Chase usually takes over a week to get out here, and so I've written off any chance of having it for our trip next weekend.