This isn't the last of Jake you'll see for this chapter, but she won't be showing up again for awhile yet still. Really she's mostly in this one as it is to establish her a bit before she's more prominent in an upcoming one - still, neat getting to work her in there and I like the design Abe worked out for her.
Here are Abe's comments -
Have you ever had that one person who just follows you to your car when you're in a hurry. I supposed everyone has, but I'm not to sure if you can see that expression on their faces. I'm sure Misty is thinking as she got in that car, they're home free. I dig the big smile look, everyone should have one on their face.