Why accept surveillance and tracking without a narrow and well-defined scope? It is one thing to track cars for estimating traffic velocity, it is another entirely to create a national database of all locations any given individual has been seen, with minimal oversight to the purpose for collecting and using that data.
> all locations any given individual has been seen
This is perhaps another reason people in the UK might be more chill about ANPR: we're smaller and incrementally less carbrained, so to describe ANPR as tracking "all locations any given individual has been seen" sounds like wild hyperbole.
(Of course all our police forces are frothing at the mouth to roll out facial recognition everywhere they can, so kicking off a bit more about surveillance might not be a bad idea...)