I think I ought to give a more extensive explanation of what my friend Nelson told me.
When you go to get your license for the first time you have to jump through a series of loops (so to speak), all of which will leave a paper trail that at the end will be kept in your record. Since my friend worked at the record department (now he doesn't) he was asked to produce these papers whenever somebody wanted to check if a license was real.
About 6 years ago all was converted into a database, which made it much easier to check the records, but the paper trail still exists. Things could have changed, but when I got my license in the pleistocene I remember I didn't need a health certificate. I got a blood test, done on the spot, an eye exam (that I failed dramatically since I tried to take it without my glasses), a written exam and a driving test. All these leave paper trail, all are kept there. Papers are necessary to create an entry in the database.
Some people with very old licenses had to retake their exams because records had deteriorated (point in case, my aunt, who had been driving for decades with a valid license yet had to take the exam again 6 years ago). If you got a license after they reformed the system you should have no problem been found, provided there was ever a real entry into the database.
What these people do is just print a license. They do not create an entry; for this they would have to bribe too many people in the department, and nobody will pay for it. I am sure it could happen, that somebody gets a real license, but the chances are not so good if you just paid a couple of hundred dollars.
You can drive here ten zillion years without anything happening, but as anyone that has driven here knows, that is pushing your luck too far. I've been to the police station 4 times in my life already (all minor scratches, one with a friend), and trust me, it isn't a nice experience, I wouldn't make it any worse by showing up with phony documents.
Take a gram of sodium chloride with my post and call me in the morning. Your mileage may vary and all that.