write a check for a vehicle and ask them if they want the money.
answer yes: you can have it if you complete the paper trail in 10 minutes or less . no, I won't sign anything, or accept any additional packages, for anything, besides the title or application for title.
answer no: thank you, drive off
you don't even have to get out of your own car until it's time to drive one, or both cars, away. works great.
why do people make a big dramatic thing out of it?
Yes, Android AND iphone GPS works without cellular data. Use offline maps and enjoy. (thanks drtbyk!)