It should be illegal to own robocall equipment unless you are a school or government agency (such as a police/fire department).
Every now and then my G1 will insist that I am somewhere in Oregon. Usually I am clued in by the weather app giving a clearly erroneous temperature on the front screen. Perhaps my phone is just asking for a trip to someplace cool, since Vegas gets pretty hot in the summer. So far the phone has always come to its senses in a few hours.