[bradtemp]

The law doesn't allow you to speed, and tickets you if you do. The law does not require your cruise control or throttle block you from speeding if you choose to do so. Yes, you need it to not be a hazard to traffic (as you would be at 65mph on I-280) but also because if you don't allow it, then people in a hurry will switch to manual driving to go fast, thus reducing safety overall.

It's not "allowed" by regulations. The regulations simply don't speak to it. But in Canada, for example, speed limiters in cars were found to violate the constitutional rights of drivers!