‘I was only 10 minutes late’

I got back to the carpark to find my car had an infringement fee of $65.00. Now that seems unreasonable even with Swedish rounding. I accept some penalty may be due but 10 minutes = 0.75c (Bursary maths). So even after further letters and threats of legal action, I know it doesn’t make $en$e to chase this. Silence is legal. Silence is golden. And I need to find another carpark.