It could be worser. The Guards already know your mobile number and could get a list of all taxi drivers within a mile of a crime/assault. Imagine then getting a text message Monday morning to turn up at a Garda Station so your footage could be downloaded. You'd probably have to go to court as a witness to prove the chain of custody of the video footage. You'd be the weak link in the custody chain if the bad guys were looking for a weak link to break!
Now imagine working nights in the city centre and getting a text message every Monday morning for the fight outside Pub X or Chipper Y!
We know from America and the UK that police tend to abuse their mass surveillance powers so it could happen here?