And thus bump yourself way up the list of possible "troublemakers"...

The very same sort whose phones go offline from time to time (unreachable baseband or no discernible motion for long stretches). What are they hiding? It might be better to put them on a list and cross-reference the dark periods with others with similar questionable behavior. Naturally,it's all done by a computer, and it doesn't count until a human analyst looks at the data so no laws are being currently broken.