Red Triangle of Death. I really hate that phrase. Thanks Microsoft! This thread really demonstrates how it is such a misnomer. At best it is would be the Red Triangle of Warning, but the correct name is Master Warning Light, which makes much more sense.
Also, the engineers who programmed that, might not want you to get out of the car when it's in drive. They hope you'll not kill yourself before you get a change to buy another Prius.