The whole split second decision to me is funny...
After a while, who is going to be in any kind of position to make a split second decision?
You will be reading a book, daydreaming, sleeping or just plain zoned out, maybe you realize what is going on, and probably don't have time to remember how to override it plus get yourself into the position to drive your way out of it.
for a while yes, people will pay attention, but VERY soon after all will be forgotten.
If you need assurance this will happen I have two things for you. Take the average person you will meet in your life, then remember that by definition half the people out there are dumber than that.
Those half are clicking the Okay button in the popup DOS window saying their computer is infected because the computer told them to. It's a DOS window, it must be my computer so it's okay to click the big button in it..