Well they're the experts. You - most emphatically (from this posting) are not. Leave it to them.
Yup. Got it in one. :)
Only in the UK can somebody obeying the law (and advice of every emergency services driver they know) be in the wrong.
There's a reason that there is no mechanism to challenge penalty points awarded when moving out of the way for an emergency vehicle. Very simple. You're not supposed to do it.