Don't joke about it. This sort of thing is all to plausible. Think about the data collected by fitness-tracking devices. What about when these are mandated by your insurance provider? After all, some car insurance companies are already promoting the use of tracking devices in your car. There are all sorts of ways that we can be induced to buy and install the infrastructure that facilitates an Orwellian police state. This book does a good job of laying out how it could (all to plausibly) come about: http://amzn.com/1841499390