If it's safe to watch the animation on the Energy screen, or contemplate the meaning of all those bars in the Consumption screen, or turn on the restaurant icons and poke at them on the Nav screen to your heart's content, it's certainly safe to look at a list of folders and choose one. Similarly, you ought to be able to choose "Previous Destination" while driving and choose a destination from that list. Apparently Toyota has an issue with the driver looking at a list of choices while driving...