Like others here I take umbrage at the police officer's comments, but the comments about emergency vehicles also get my goat.
When I did my initial pursuit and response driving course I was taught that even if we have all bells and whistles going it is OUR responsibility if we hit another road user, as they shouldn't be expected to see or hear us. The suggestion was joe public is not to expect a blue light vehicle hairing along the wrong side of the road, so we have to anticipate their not seeing hearing us and drive accordingly - i.e. be ready to stop - and further to that, if we did have a crash, we would be investigated.
That sounded reasonable to me, but it also seems poles apart from this police officer's opinion.