Eligibility to park in disabled parking.  Having experienced what it is like when a high functioning autistic child begins a meltdown whilst in a car, it becomes a safety issue that the driver be able to park the car up & try to diffuse the meltdown.

Meltdown is often unpredictable, & what starts off as a quiet car journey can quickly become a situation which could potentially result in an accident.  Access to disabled or priority parking could help a great deal in such a situation.