As Mr. Snader told you, in Az, there is no "expungment". Once you file and receive the application to vacate judgment and order, you can show it to prospective employers to indicate that you have been relieved from the stigma of guilt.
I am an Arizona DUI lawyer. The Statute you refer to is what is called "procedural". That just means that in order for the case to properly get started, the cop must file the ticket and copies with the right court. This may however, demonstrate that the cop is proned to mistakes. If it is a breath case, then the same cop that stopped you gave you the test. There is protocal that he must follow to render it admissible. Also, if it is a breath test, it is very fightable. There was no bad driving...