There are a ton of opsec mistakes one can make that a nation state could track. How did you get to that hacked wifi location? Any cameras on the way? How many times did you use it? Shared radius from where you live / work / have ever used a credit card? The pervasiveness of tracking by camera of people / cars / etc makes this very hard to pull off (and I've given it a lot of thought as an infosec professional.)