So you ignored and refused to pay the court order then? That's different, I said the parking company cannot influence your credit rating. A CCJ is applied by the court.
They obviously took you to a small claims court, at no point would I recommend ignoring that part of the proceedings.
It can never be deemed as a criminal offence, only a breach of contract, and the simple fact of the matter is pursuing the case through small claims is not worth the time, effort or resources for these companies.