There was a testing period last month for non-lobby check-in at certain WDW resorts. Guests were selected to take part. It involved having your info set up in Online Check-in, plus a few questions like, approx what time were you arriving. Those guests chosen could be checked-in without visiting the lobby as usual, and they would be emailed/texted later that day with their room number.
If you did not participate in a program described above, your DDP will not be available, and maybe your theme parks parking privilege won't work, either. You would have to stop at Guest Relations outside the theme park gate for getting your tickets to work. FP+ would work.
Why don't you stop by your resort first? Even if it's too early to get into your room, you could drop off your luggage with Bell Services and they'll keep it until you call for delivery later. The check-in CM will get you your DDP credits and activate your tickets. You'll get a text/email with your room number, and your MagicBand will unlock the door without going back to the lobby. Lately, I've read that the Security Gate Guard has been handing out the parking pass that you place on your driver's side dashboard.