It would be useful to get a bit of context as to the event(s) in question. The 3 parking charges allege that they have been issued for parking in a disabled bay - the first questions are: (1) Was the disabled bay clearly marked? and (2) Was an occupant of the vehicle disabled? If not, the logical next question in: (3) Why did the driver park there?
There is an argument to be made that none of the notices do not demonstrate a period of parking of sufficient duration to exceed the relevant consideration period, although one could argue that if the driver was indeed considering the terms, they ought to have been visible in some of the photos, in which the signage containing said terms is visible. This argument would not persuade QP or the IAS, but could be argued in court.