In Austin, most the cops were pretty good when I worked there. In Houston, for many years, they were just a gang with the city paying for their colors. I hear they're better, now. In Waco, the county sherrifs started staking out the fireworks stands, and reporting to the fire department. If people drive into Waco with fireworks, they intended to pull them over and write them $200 tickets, as fireworks are illegal in the city (even possession). The fireworks stands set up decoys and gave them empty bags, so all they caught were people who hadn't broken any laws. It was on the front page of the paper, and is turning into a pretty good embarassment. I figure if cops have time to stake out fireworks stands, we've got plenty.
It takes person with a sadistic streak and/or lack of conscience to want to do the job of a traffic cop now-a-days, so no wonder they are having a difficult time in recruiting.