I've been puzzled over the "locked car" lie too.
Why would W-1 tell LE that the car was locked when it wasn't? What was the purpose of that lie? Why is THAT lie important enough to be mentioned in the charging Doc. Even to me, it seemed trivial.
But continuing on my foolish speculation, opinion ONLY...that lie appears to answer another puzzle for me. That puzzle is...why involve W-1 at all in the money drop?
We all agree that SS was The Boss. His employees did what he asked them to do. Now SS needed another employee to actually MAKE the bank transaction. W-1 could NOT do that...no authority.
So why not just have THAT employee get the money drive it over and leave it's the house?
Why would SS or DW involve another person? Strange.
Remember DW and posse are hyper about people coming to the house. They sure wanted to keep the other housekeeper away . And they have to deal with VF's husband. So WHY would they have SS involve one more person than necessary?
And why would SS trust a three month employee/driver over his accountant, CFO...whatever? That doesnt make sense. The other employee is "the money guy." He drove to the bank. Why not have him drive over and make the drop?
Unless DW wanted W-1 to make the drop.
If W-1 is part of the plot, he needs a reason, a cover story....to tell LE why he was even involved in the money delivery...instead of the easier solution of just having the guy who got the money drop it off.
So he tells this lie...well, the car was locked. They needed me because the car was locked and I know where the keys are kept.
But, under further interrogation, W-1 had to admit...no, actually the car door was open.
So he wasn't needed for any logical reason.
Just guessing...but that may be why LE finds that lie very interesting.