Not only are they a bit of a div for parking on the whole pavement, you also have to wonder how much they inconvenienced themselves trying to get out the car probably climbing over to the passenger seat and out that door
If that was reported at the time, the police could have legally remove it because the pavement is also the highway but reserved for pedestrians, to block it is an offence in itself because of visually impaired road users and the disabled on mobilty or have mobility issues.
Just because there's police cars doesn't mean anyone is guilty. That's not how justice works in this country.