£860 Private Parking County Claim - Urgent Help!

Thank you. Please see below for revised version:

Is there anything else I should add?

1. The Claim Form issued on the ____ by First Parking Limited was not
correctly filed under The Practice Direction as it was not signed by a legal person but signed by “First Parking Limited" (Claimant’s Legal Representative)”.
2. This is my statement of truth and my defence.
3. As an unrepresented litigant-in-person I seek the Court's permission to amend and supplement this defence, as may be required, upon disclosure of the claimant's case.
4. For the avoidance of doubt on the relevant date I was the registered keeper of a X registered number XXXX XXX
5. The vehicle was parked on each occasion for under 10 minutes, whilst the driver loaded bulky printed documents/files of work/books from the adjacent library to the vehicle.
6. Lancaster University Car Parking Policy #20 states that "Where vehicles are being loaded or unloaded in other areas, including car parking areas, vehicles must not be left unattended for more than 10 minutes at a time. This includes moving students’ belonging in or out of campus accommodation."
7. Lancaster University Car Parking Policy #20 therefore allows cars to be parked for loading, as long as they are not unattended for 10 minutes.
8.1. In the case of Jopson v Homeguard [2016] B9GF0A9E, heard on Appeal in Oxford Court by Circuit Judge HHJ Charles Harris QC and therefore a persuasive finding as well as being on all fours with my case, it was held that: “it is possible to draw a real and sensible distinction between pausing for a few moments or minutes to enable passengers to alight or for awkward items to be unloaded, and parking in the sense of leaving a car for some significant duration of time”.
8.2 HHJ Harris provided a very detailed definition of 'parking' as opposed to a few minutes 'loading' and held: ''The concept of parking, as opposed to stopping, is that of leaving a car for some duration of time beyond that needed for getting in or out of it, loading or unloading it, and perhaps coping with some vicissitude of short duration, such as changing a wheel in the event of a puncture. Merely to stop a vehicle cannot be to park it; otherwise traffic jams would consist of lines of parked cars. Delivery vans, whether for post, newspapers, groceries, or anything else, would not be accommodated on an interpretation which included vehicles stopping for a few moment for these purposes. Whether a car is parked, or simply stopped, or left for a moment while unloading, or (to take an example discussed in argument) loaded with bulky items, must be a question of fact or degree. I think in the end this was agreed. A milkman leaving his float to carry bottles to the flat would not be “parked”. Nor would a postman delivering letters, a wine merchant delivering a case of wine, and nor, I am satisfied, a retailer’s van, or indeed the appellant, unloading an awkward piece of furniture. [...]I am quite satisfied, and I find as a fact, that while the keeper's car had been stationary for more than a minute and without its driver for the same period (whatever precisely it was), while he carried out his books, it was not “parked”. Accordingly, for that reason too, the appellant was not liable to the charge stipulated in the respondent’s notice.''