for the not touching it like the lunch bag is somthing thath the mc dosn't want to touch with probably no lore attached to them,for the loked doors some are areas yet to be made or you haven't unloked them yet,don't really know why zombie girl is missing but maibe if you use the handcuff from the guard office she'll stay out. hope to be of help (not a developer).
Rex scared the zombie off! That must be it! I think, outside of "figuring out what the heck the 3 digit code is for the toy box thing" I've seen pretty much everything I can. There's a few things that you are teasing (if I can get the "cartoon crush" I'm not aware of how, and if the knife and the duct tape have a use yet, I'm not sure what) and I noticed a Red Green show reference (possibly unintentional)
My only real complaint is there's some things that don't make sense. The MC talks about not visiting the sucurity place unless the others are trapped in the freezer... before even knowing that they can be so. Also there was a task about getting Rex some help from a wolf attack before it even happens. It doesn't take away from how fun the game is(and it is really fun), just...weird word choice sometimes.