I can’t be bothered to read all of the posts (some are probably quite knowledgable on this).
I always thought the fine could run into thousands – but perhaps this is more aimed at large-scale exploitation – maybe customs should visit the farmer who was selling it?
I thought that the rationale was that it was such a tempting thing to do, and that you were relatively unlikely to get caught, so the deterrent was made quite severe in financial terms?
On a slightly more amusing/annoying note, I had a mate who worked for customs. He told me a story about how the ‘oils and fuels boys’ had got a bit gung-ho and ‘impounded’ some blokes car. It was something to do with ‘red’, I think. Anyway they just parked it up outside the building. When they were told to move it as they probably shouldn’t have done it in the first place, they drove it around the corner onto some double-yellows before calling the bloke back.
Probably an apocryphal tale, but one that still amuses me.