Oh yea that was easier in NJ. I forgot where I live now. Take a photo of the title before you hand it in. Some of the old ones have a trail of ownership on them. No notary needed in NJ (or least it used to be that way).
Check your state but in Kansas, you can take the license off a car you own and put it on the new car to drive it home. You must be able to show insurance on the car you are driving though. Drive it home, park it and get the new tag.