I really do admire your tenacity, dry sense of humour and wit. I know you are as confident as I am that this will never make it to court, at least for you as a defendant (respondent).
However, should you wish to sue ParkingEye for harassment or data misuse (or anyone else for that matter), that is entirely feasible and likely to cause them some consternation for the following reasons:
ParkingEye would be required to defend a claim in Scotland if the Scottish court accepts it.
Even though ParkingEye is an English company, Scottish courts can hear cases against companies based elsewhere in the UK, especially when the harm or distress is felt in Scotland. The civil jurisdiction rules in the UK allow a person to bring a claim in the place where the harmful event happened. In a harassment or data misuse case, that means where the person affected lives — so if the harassment is received in Scotland, the Scottish court has the right to hear the case.
In Scotland, harassment is treated as a type of wrongdoing called a “delict”, and the rules say the court where the harm happened can deal with the case. So if a Scottish resident sues ParkingEye, an English company, in a Scottish sheriff court under the Simple Procedure (used for claims up to £5,000), ParkingEye would have to respond.
If they don’t reply or defend the claim, the court can give a default judgment against them. That judgment would be valid and enforceable in England.
ParkingEye could try to challenge the case by saying Scotland isn’t the right place for the claim. But they would likely fail if the court agrees that the harm was suffered in Scotland.
To start a case in Scotland, the person would file the Simple Procedure claim in their local sheriff court and give ParkingEye’s registered address in England. The court would then arrange for it to be served on ParkingEye.
So, a Scottish resident can sue ParkingEye in Scotland, and ParkingEye must respond if properly served.