I still believe she was taken on her run, and I think it's possible that happened without anyone seeing. I think back to Kelsey Smith
Murder of Kelsey Smith - Wikipedia
She was abducted from a busy Target parking lot in broad daylight (7 PM in June, which is still very light out). A random crime--the guy saw her in Target, followed her, and then ambushed her by her vehicle. At first glance, they didn't even see it on CCTV until they slowed it down.
So daylight, cars around, people in the parking lot, and no one saw anything that we know of. It was solved by thankfully there being cameras at Target and at the Macy's where he ditched her vehicle. All this to say that even before dark when we think some people may be out and about, it really just takes a second to grab someone and shove them in a car. Then you are out of there in seconds. Ambushed perhaps with no chance to even scream or yell out. And of course, if it was someone she knew fairly well and went with willingly, there would be no struggle or anything odd to even see.
I also think about the poster in the last thread from IL who drove to Brooklyn yesterday. He (she? I am unsure of poster's sex) is not from the town but said driving through, most people they saw just waved at them as they went past. So I don't know that people would be all that suspicious or on the lookout for a vehicle that didn't belong as we may believe.