I'm reminded of the scenes of Tomorrow Never Dies where Carver tricks the HMS Devonshire into Chinese waters by meaconing the GPS signals and sending it off course.

Not that I think there's any deeper conspiracy here though. Just kind of an interesting "what if".

Nah, Russians do this routinely. Scroll down to the last bit on here: https://www.bbc.co.uk/news/articles/cx2y515gzq7o