[norsairius]

I actually did all of the negotiations for my car via email before going in to pick it up. I went in to check out the car once, drove it a bit, and then left the same day. Next day I emailed back and forth with sales all day. I went in after work to pick up the car and they had all the paper work ready for me to sign when I got there. I was out with my new (CPO) car within 30 minutes. Granted, this dealership was local to me.

250 miles is driveable. I would work directly with the dealership that has the car. I know you said time is limited on your end, but I think it'd be more worthwhile and it could save you money. Dealerships are willing to work with you as long as you explain the circumstances and are polite about it, at least from my experience. Plus, you get those 250 miles to drive back home to get acclimated with your new car!