Deliberate violations?

[SubaSteevo]

Two nights ago I got pulled over for speeding (I was not driving recklessly, I simply did not realize the speed limit changed over on the road). The cop was very friendly and gave me a ticket for my license plate bracket instead of the speeding violation. A little over a year ago I had a similar situation and got the same ticket (for the same license plate bracket actually...).

I'm debating if I would be best to leave the bracket on so that if I'm pulled over again I may be lucky and get the same ticket. However I'm not sure how long a violation like that stays on your license, and it would look rather suspicious if I have 3 obstructed plate violations...

What do you guys think?