At the very least this sets out that these terms aren't
- acceptable charges for parking in the sense of an exchange in goods or services (see statement 94)
- recoverable damages (see statement 97)
- or acceptable penalties (well they simply aren't allowed).
This means that private parking tickets for non retail spaces are going to have to come with a reason why their charges and their levels are justified.
In the case above the consumer received the ability to park for 2 hours in exchange for this contract and the charge was to ensure high turnover which financially benefited the retail park and it's tenants (see statement 99).
The ruling is made by the Supreme Court, and my understanding of Common Law is that it has set a precedent. It may not be a good one but the ruling is pretty final (I'm assuming it can't go to European Courts). Feel free to correct me though, your knowledge is better than mine in this area of law
I'm not qualified in anyway.
I can just see contradictions in the judgement which makes me doubt it in its entirety.