I also have a query about the DMV. Is it possible to just walk into an office and do this? Will I be given a temporary license?
Yes, if you renew at an office you receive a temporary license to use until your new license arrives by mail within 10 business days
I may be leaving New York in the coming years. Can I get my licensing fees refunded if I exchanged my New York driver's license for an out-of-state one ?
Yes, you can get a refund. You will need to attach a photocopy of your out of state driver license to form MV-215 and mail it to the address on that form. It may take up to 12 weeks to receive the refund.