[Striker_Moe]

You should add this:

pawn Code:

if(!IsPlayerCop(playerid) || !IsCopCar(GetPlayerVehicleID(playerid))
{
SendClientMessage(...)
return 0;
}

instead of

pawn Code:

if(!IsPlayerCop(playerid) || !IsCopCar(GetPlayerVehicleID(playerid)) return SendClientMessage(...);