Yeah that is fair enough, if they are trolls they should be reported and dealt with out of character and if they are needing to be tazed/cuffed for example then they should be, an admin should always be contacted though in that situation, a player (cop in this case) shouldn't need to break a rule. Since this is voice chat as well, people generally think if you are roleplaying as anything out of the ordinary or you are insulting their characters in game that you are toxic or trolling. A lot of people seem to think because I say, "Fuck you, you'll never capture me you commie fuck!" that I'm either trolling or being toxic to them OOC. Which I'm not, I'm roleplaying as someone who is very clearly mentally unstable. Whilst some people I've came across RP'd accordingly, others took it OOC personally and I even got arrested for trespassing, even though I was attempting to hand in my tickets, lets not get into that though. It is common sense that if the person is running away or driving away and you have no time to RP, you don't RP. But for stuff like attempting to cuff, they should be given a fair chance, just like anyone in the real world would. I'm not sure if I'm allowed to mention the server name, you can always edit my comment. But the SA:MP server, LS-RP, has had this in place for a while now. If it is something like pulling out a weapon whilst someone is typing out some roleplay, you give them some time to react, same applies for driving away in a vehicle since some people may not be touch typing, they may not be looking at their keyboard. If a cop writes you a ticket but as he is doing the /me for this ticket and you decided to drive away, obviously in real the cop would instantly run for his cop car and wouldn't be waiting (aka typing).
I kinda find it hard to what I'm getting across but basically in the current rules, they clearly allow for powergaming because you are forcing roleplay on someone without punishment when you should. Especially for cases in which it makes you go to jail (basically being unable to RP for an extend period of time), getting you killed or just cuffing you up because someone knows how to type a command. If the person is stopped, and you attempt to cuff them, meaning they are not running away, you are both static, you allow them to react instead of just doing /cuff or a "/b hey can you please to /up so I can cuff you?" which by the why, I've seen A LOT of officers do this exact thing.