i did call my credit union. they said they could do it, but it would take 2 weeks for everything to go through.
I have had to buy a couple of cars recently that I didn't intend to buy, but because they were unplanned, I had to use credit. I used Capital One's instant check program....The check is FedExed to you after you've picked out your car. You can go to the dealer or wherever you get your car and it's just like buying with cash. Sellers love that.

Karen