One short observation:
Sometimes when I take my car to Valvoline for an oil change, they ask me to put my keys on the dash after I turn off the car. Other times they don’t.
They had me set the keys on the dashboard today.
Do they just forget to ask sometimes? Or, is it more of a situation where the mechanic is thinking, “She looks like a ditz. Better have her put those keys in clear view so nobody gets hurt.”
I lean toward thinking that they go on a case by case basis and that I just happened to look particularly kooky this afternoon.