Today I found this trailor and i tihnk its pretty cool and i did find one thing, but watch the video first:.

https://www.youtube.com/watch?v=zj0roIbKyPk

Tawards the end of the video you hear  Rick tell DAryl to get the truck, so I think they are going to do the same thing the did in the comics when they parked the car in frount of the fence when the walls in Alexandrea were falling.