Speaking of running over your friends, I found this out just now:
>If during the car minigame, there are no cars hit, then you can obtain a mini car NPC near the right side of Castle Town.
Time to go back to the midpoint of chapter 2. Thankfully, I have a save right after I got Noelle so I can do a snowgrave run.

But, fuck, man. That's a long ways back and I gotta get the egg again.