Joining here late.
I'm a bit confused. Did she disappear from the church or from her apartment? Did she first go home after Kroger and then to the church? Or did she go to church right after Kroger? Why was her bag, which she reportedly always took with her, at home? Did she leave her groceries at the church? Did she leave her coat at the church?
In my mind it would seem that she walked home after church (probably had forgotten about the offered ride, and possibly forgotten her coat/cardigan) and once home, for whatever reason headed back out. The fact she left the bag at the door and didn't take a(nother) coat could mean that she didn't mean to go anywhere far, maybe to knock on a neighbor's door or bring the trash down, or something?
But the fact that searches are not conducted around her apartment might mean that LE thinks that she never arrived home. In which case, she must have gone home after Kroger and then gone to church without her bag.
Sorry if this is a bit muddled, I feel there are some details missing, or I overlooked them, and without them the story is quite confusing.
In any case, I very much hope Sue will be found soon, and safe!