Phew, I'm seeing the light at the end of the tunnel.
I called in this afternoon, and fortunately I was approved about an hour before calling.. USSFCU needs now, the Motor Vehicle Purchase Agreement - which you need to get from Tesla. Well apparently I didn't get that because I didn't fill out the financing info on the App. But I didn't fill it out because I wasn't sure the financing was a sure thing yet!
Well, now that it's a sure thing - I filled it out. Some 10 minutes later, the MVPA showed up, and I just submitted that to USSFCU. Additionally, I was able to pay my portion of the down payment through the Tesla app using Plaid - so no nervousness on wiring money to the wrong account.
Oh, and Insurance wouldn't take my money until they get a lienholder on some paperwork, so the loan was the big piece here. Yikes a lot of moving pieces to get done by Wednesday!
But. Approved for 3.74% - so that's good!