The student made three main claims, none of which were supported. The claims were good, they were statements that said she shouldn't get a ticket, but they never really explained why she felt so. One more thing I couldn't help but notice, her argumentation was rhetorically declined. Her arguments weren't persuasive enough, or did not effectively appeal to the audience. Being that the District Attorney has more than likely read thousands of Defense Statements made by college students trying to get out of speeding tickets, the argument is going to have to strike a logos with him or her.
So, reinforcing the concept of the necessity of emphasis of argumentation, the proposed argument really does help prepare you for the real world, and can also help you get out of $300 speeding ticket fines.