IMO this is what I think may have happened...
AQ is in the cabin, hears a car pull up, gets scared, grabs phone and gun. In a panic calls last number dialed as a man approaches cabin. The friend answers and (as noted in police report) hears gun shots and AQ says she shot a man in the face...this man may have still been in the car in the passenger seat since possibly no blood was found at the scene, but a car later was seen with the passenger window missing and a tarp or blanket covering the missing window. So, as the phone call was going on, AQ empties her gun and drops it, grabs her boots and runs out the cabin window and gets on the roof where the other man grabs her and drags her into the car, taking off. The person she called no longer hears anything and calls 911. The friend simply gets the address wrong because she is freaked out by everything she's just heard.
A few days later I think AQ may have escaped and ran to this Traverse city Walmart where the man catches up to her and they are spotted by some shoppers going to their car. The shoppers follow the car as described in the post to AQ's sister...and then I have no clue what happened next.
Anyway, this seems to be the closest I can come up with for a most likely scenario.
Please let me know your thoughts.
Also, I saw the news video of the cabin with the window and roof and it looks to be very close to the ground, which makes this scenario more plausible.