If you have done something, and sometimes nothing, that is the procedure, to take your license. You go and pay the fines and then go to the police and reclaim your license. That is how it works here since no-one would ever pay fines if they let them keep their license.

Since I live down here, if they want my license they can have it. If it's an "expensive" fine like speeding, then I order a new license from the embassy.
Don't go around with poor made licenses, yepp most cops down here don't have a clue, but if you run into one who does have some clues and he's in a bad mood be sure to go the central offices for at least a strict lecture.

So, GOOD copies, preferably made in the correct machines which produces near identical licenses are recommended.

They do have one REALLY STUPID traffic law, you can't change lanes in roundabouts. So don't do that!

And be nice to the poor coppers, a tip that has worked great for me: Get off your bike/Out of car, and stand in front of it. In a nice manner, tell the "señor oficial" to stand in front of the bike as well as it might be very dangerous to stand with the back to the passing vehicles. This "concern" usually softens them up and might get you out of a ticket. When just checking your papers they usually stop checking and send you on your merry way.
I guess they see you as one of the good guys when you do this so it's worth a shot pointing out this risk.

Cheers!