Question about illegal parking

[Lcee]

Hello,

I want to get a point clearified if that is possible about 'illegal parking'.

When you, as cop, see someone who is illegal parked and you are on him in !chase mode (not failing to stop yet) and the suspect is driving off after you ask him to move, in my opinion you should do !leave because he is going on, right?

Today (I don't want to offend the cop and I wont use names, but I want to clearify this point because I don't understand this) a cop asked a player to move when he was in !chase mode, the suspect drove off and did not stop, the cop kept following him and the suspect failed to stop, which in my eyes is unfair because the suspect drove away from the illegal parking spot when he got asked to move. I think the cop should've !leave the chase instead of following him and fining him for failing to stop afterwards.
I don't see the point of moving from an illegal parking spot and stop a few meters further which would probably be illegal parking aswell.

Could anyone give a clear answer why this is not against the rules?

Thanks and regards,
Lcee