For several months, keyless entry stopped working on my car. It fixed itself. My unlikely conspiracy theory is I was being tracked and interference kept the keyfob from working.
If this is America, it would be the FBI who has jurisdiction. If this was outside America, CIA would be more likely to be installing hardware on a vehicle. If you hear the guys breathing on your phone line, that's probably the NSA ;)
You make it sound like the NSA can never fail. If it's monitoring you then you are likely doing something deserving of monitoring. They can be wrong though and you'll still have been spied on and information collected for future use. Consider a career in politics, perhaps?
unless you're suspected of smuggling nuclear secrets
ftfy