I have never once loaded up my laptop, taken it to the car, then while in the car removed the power supply from my computer bag for the drive to my destination. And I'm talking about daily commutes for xx years. You just don't take the power supply out of the bag until you get where you're going, unless you're plugged in at an airport or elsewhere along the way. So this is likely another lie.
I believe he left his room to scope out cameras, entries/exits. He made up the "went to the car to get my charger" bit, along with the rest of his story, once he knew what the State had as evidence.
Furthermore, a frequent business traveler learns quickly to "leave room - take key card." It becomes 2nd nature. You learn from the first (or second, if you're slow) lockout.
As far as not closing the hotel room door because he didn't want to disturb any potential neighbors? Really? This guy who does "dick-tricks" and gets naked at gatherings, and is disruptive to the point of being excluded from social events, all of a sudden becomes Mr. Considerate of Others, those "others" being both strangers and not even known to exist in the adjoining rooms? Alrighty then!
Speaking of oddities, neither Josh nor Shelly ever asked him if he did it. Ryan Schaad, the BFF, arranged for JY to meet with Roger Smith (criminal defense attorney from a well known firm). They immediately thought he was in need of an attorney. And yes, this was because their answers to law enforcement questions did not put JY in a favorable light, per his BFF's. And they withheld some (negative) information from LE at first, such as the fact that JY was having an affair and felt he was in love with Michelle Money. They withheld this (key) bit of info from LE on November 3, 2016. Seems like they were trying to protect him. Why would BFF's try to protect him and make sure he didn't speak to LE? Because they thought (or knew) that JY was involved. IMO.