My (inexperienced, non-professional) gut says there's no reason to believe the car and the body were left anywhere near each other. (Assuming it was not a suicide, nor some sort of weird "I'm rushing off to work but decided to go for a hike instead and then had some sort of accident" scenario. Also assuming there's no evidence that the scene was staged to look like either of those things, in which case the perpetrator would be counting on the body being discovered nearby.)
As far as we know, no one saw (or talked directly to) Anna after a certain date, probably ~3/28 or so. Did any neighbors see her car in the intervening time, while she was (allegedly) sick at home? As in, parked in the driveway?
Just imagine that she met with foul play around the 28th or so. The body would likely have been disposed of soon after, right? But perhaps her car was kept at home until the day she supposedly rushed off to work (but never arrived) to maintain the illusion that she was at home. That's total supposition, and there are too many unknowns (for us, maybe not the PSP) to say at this point what the timeline really was, but my point is that there could have been quite a lot of time in between when Anna actually disappeared and when the car was left in that parking lot. We don't even know if it was there the whole time between 4/10 and when it was found. The body dump and the car dump could have been completely separate events.
(Again, this works on the presumption that there was foul play involved, and that presumption is made based on facts in evidence to us, which are clearly not all the facts and are not even necessarily facts. The PSP could be working in another direction entirely.)
As far as we know, no one saw (or talked directly to) Anna after a certain date, probably ~3/28 or so. Did any neighbors see her car in the intervening time, while she was (allegedly) sick at home? As in, parked in the driveway?
Just imagine that she met with foul play around the 28th or so. The body would likely have been disposed of soon after, right? But perhaps her car was kept at home until the day she supposedly rushed off to work (but never arrived) to maintain the illusion that she was at home. That's total supposition, and there are too many unknowns (for us, maybe not the PSP) to say at this point what the timeline really was, but my point is that there could have been quite a lot of time in between when Anna actually disappeared and when the car was left in that parking lot. We don't even know if it was there the whole time between 4/10 and when it was found. The body dump and the car dump could have been completely separate events.
(Again, this works on the presumption that there was foul play involved, and that presumption is made based on facts in evidence to us, which are clearly not all the facts and are not even necessarily facts. The PSP could be working in another direction entirely.)