GPS in company vehicles Thanks for your comments folks, I've learned a bit more after canvassing this topic.
I've heard that companies that treat this as a safety issue, and not a speed monitoring issue, are able to get this across the line (external fleet manager and drivers get their own report - no-one in the company sees it unless there has been multiple overspeed incidents).
It has become self-policing, with employees making a competition out of it eg division with lowest/no speed tickets etc. There was some initial grumbling, but trust has built to a point that they're now discussing the real time monitoring as they've seen how the driver feedback reporting helps them improve their own vehicle handling. The employees are behind it as they and their colleagues often work alone, and outside of cellphone coverage, so they get the benefits of location monitoring during work hours.
Like most things, its a process, and its about building trust first...