I'm also not an obedient TD...
But basic regulation, I sure follow...
Attire, appearance...
Doing all this is for myself mah, who want to look sloppy while
working?...
When you are fresh and look neat, (I tug in my shirt 1 hor) do
anything also very smooth...
As for own usage, very subjective lor, I believe off duty or on
duty, enforcement can judge lor...
If enforcement station at Airport, if you off duty, why still
queue inside the taxi queue...
If you park in Airport carpark, of course benefit of doubt, they
will let you off lor...