Health,
1. The cameras would only show that the car was driven. It would not show who drove it. What about rented, borrowed and stolen cars? In nay case, as I already posted twice previously, the Avnei Nezer says that it is not the job of the secular authorities (cf. Freddie Prinze’s super, Mr. Rivera).
2. The reward of having learned Torah is your payment. The witness will answer the question! Would you sell a pen to a non-observant Jew? Yes or no?
3. You were over on rechilut as I did not notice Simcha’s comment. You were also over on “b’tzedek tishpot amiteicha” as you did not presume that. Should we consider you religious?