There's an addon called TrackMeNot that does this, though I'm not sure it's very effective.

http://cs.nyu.edu/trackmenot/

This also reminds me of the time the FCIC asked Goldman Sachs for some data and they proceeded to send them 5 TB of nearly useless documents.

Dumping people with large amounts of data seems like the modern equivalent of paying your parking ticket with pennies.