Your trucker/biker story has been around a long time. It was even used as a sight joke by Jerry Reed in the movie "Smoky and the Bandit."
There's one, less an urban myth than a hoax, that is making the rounds again. Every couple of years somebody starts circulating the story that the federal government is paying dividends to veterans on their Servicemen's Group Life Insurance. IT AIN'T SO! This one has cost us, the taxpayers, megabucks just answering the inquiries that have been sent to VA and the DOD. If anybody should mention it, tell him to forget it.