I'm in a situation where the car I'm trading in is under a family member's name. He is only available on Sundays when Tesla doesn't do deliveries. My ISA recommended I pretrade the car on Sunday and pick it up the next day. I haven't heard of this before and I'm reluctant because of any surprises such as giving me a lower value on delivery day. Looking for opinions and things to be cautious of. I'm in NY.