I don't mean to argue that the GPS wasn't intentionally disabled. I just wanted to ask whether we KNOW that to be true. I don't have any technical knowledge of a system like this, and it seems like a key detail in this case.The last known ping by Pearl Motors was at the Shell station according to LE. We don't know the precision of the OnStar and/or console GPS but we have been going with the LE statement. I believe others on here have followed cases where GPS becomes disabled by being in water. If the Shell station statment is incorrect then sure your theory of losing GPS might work.
I'm trying to go back and question all that we "know" about this case because I'm not sure which information is reliable at this point.