I'd definitely believe that he most likely went around seeking a ride from neighbors when she initially "kicked him out of her home", PRIOR TO his killing her.. Moo is that he was likely met with negative reactions from neighbors seeing as how the time would likely have been wee early morning hours.. IMO that likely only fueled his anger..he returned to Misty's and at that point killed her and then drove her vehicle to his residence AFTER disposing of Misty's body using her very own vehicle..jmo, tho..
I would also be willing to bet dollars to donuts that yes, he very very likely is the same man who the neighbor stated that Misty had tried to find him a ride home days earlier.. Jmo, but as I'd initially theorized I believe that on that occasion that he was likely attempting to manipulate a way into having to stay over at Misty's home..and for whatever reason it seems that she was definitely wanting to find him a way home so that he wouldn't have to stay at her home..again all jmo, tho..
**Please forgive the limitations that come w/my posting via mobile ATM**