So odd. I don't think parking at the town hall is something you'd do if you didn't want to be found / seen. The fact that her Etsy shop was on break too seems to imply it wasn't a meeting for an online sale (unless she was buying something?) but if it were a case where an online person met her with nefarious intent, what an incredibly bold / reckless plan to meet her at the town hall. I guess we don't know when she drove to the town hall, maybe it was after hours? To guess her path it'd be helpful to know what time she was last seen on the 4th.
I don't see much in the area she'd be inclined to walk to from that parking lot either - there's a small cemetery nearby that doesn't seem to have a better lot. Other than that, the town hall, fire department, police department and a church. I'm not from the town, but that would seem to be one of the safest places to be.
Fwiw it was warm-ish on the 4th; around 40 degrees midday.
There must be CCTV from the police station?