Back in the 70s I remember seeing a short TV interview with an astronaut in a capsule orbiting the earth. The interviewer was another astronaut in Houston, who asked him "Are you a turtle", in answer to which the orbiter could only smile. At the time, it was mystifying.

1. Ick. Who gets to decide what crappy tune I'm going to have going through my head every morning while I'm driving to work? That's what my CD player is for.

2. Why would it matter what speed you go? If you sped up it would just raise the pitch. If it did indeed go away if I was speeding, that's what I would do.

3. It would be much cooler to have grooves cut into the road that actually said something, like "Stop ahead" or "slow down". A little more complicated, I suppose, but not impossible.