When you are ready to sell your Model S, or almost any other financed car with these regional credit unions, be careful to give them PLENTY OF TIME to process your final payoff. I used PenFed for my 2013 Model S, but I am totally disgusted with their processing of my payoff. The appear to have treated a direct check from my credit union here (Golden !) as a personal check and waited 10 days "the payment to clear" even with a confirming FAX directly from Golden ! showing that the $$ had been paid. This is costing my buyer several days in getting the car as he wants the title totally cleared (don't blame him at all).
I called PenFed immediately after making that payment process on my Golden 1 Credit Union direct pay process; PenFed checked and assured me that "the title would be cleared in a couple of days." I called AGAIN 3 days later and they once more assured me "the title should clear tomorrow electronically." Only at my FOURTH call did I get a PenFed representative who actually knew what he was talking about who then told me, "Sorry, we have to wait 10 business days for your check to clear." YIKES ! TOTALLY Incompetent as far as I am concerned.
Just warning the rest that these smaller credit unions have their own "pace." I financed my 2015 P85D through Energy Federal Credit Union, and they have their own strange protocol...while almost everything can be done with electronic signatures, they require a "wet signature via overnight mail" for the power of attorney form. An extra $85 or so in processing fees to get that mailed in both directions and their check expedited to Tesla.