Pin to Drive privacy question

[Akikiki]

OP, thinking about your first post in this thread. Here's two more ideas.

1. Use your other hand to cover the keypad when theres someone you want to prevent seeing.
2. If necessary turn off unlocking of all doors to only unlock driver's door. Get in, enter PIN to drive, then unlock the other doors.

 

[axhoaxho]

If really worry, change the PIN after suspicious passengers in the car.