We can go more ridiculous too. Worst Case scenario, cop pulls over person and beats them for kicks. Why someone would have their ID in the glovebox I don't know, but you usually keep reg and POI there anywhere so it's not likely to be an issue. "Officer, I just swung through a drive thru and my wallet fell under the front seat" is also reasonable and unlikely to cause much problems, or "I was at the beach, hence the shorts, my wallet's in my jeans in the back seat under that beach towel" is also unlikely to cause problems... note how these involve informing the officer of the situation before jerking for some object under your seat or in the back, like a pistol. Getting tasered is not for most people a truly awful thing, minus a heart condition, getting tasered is hardly an awful and traumatizing experience a rational person has a right to feel brutalized about, especially when they've done something to provoke it. IF an officer or a precinct starts developing a reputation for excessive tasering II is likely to appear in short order to check up, along with newspapers and elected officials. Bad eggs aren't stopped by laws anyway, anymore than any other criminal, so worrying over what some one might do on something we all consider wrong is mostly moot. We have laws against discrimination, yet some LEOs still act in a racist way, if it's done especially excessively or regularly they will get nabbed. In a thirty year career, pulling over say 3-4 people a day, you're talking about tens of thousands of such incidents, odds favor multiple incidents will occur that meet one or more of the following criteria:

A) Someone is a serious criminal, and may resist arrest in an extreme fashion ---> broken taillight on someone with a warrant on them for a felony, or drugs/dead body in the vehicle

B) Someone is a serious heavy hitter, and unprofessional behavior towards them, or anything that might be perceived that way, will result in consequences ----> congressmen, ACLU lawyer, wealthy or influential person.

C) Someone will later outright lie or grossly exaggerate your actions, and win or lose you have your career damaged.

Even if this happens 1% of the time that means roughly monthly, maybe weekly for a traffic cop or State Highway Patrol. Same thing for those showing up to domestic cases. So even those few bad eggs tend to have to be fairly careful, you might get away with tasering someone for kicks once, but when you have 3 or 4 taser complaints filed on you things differ. One gun shot draws extreme scrutiny, pretty much any use of force will. So little concern there, now for harassment? Always a problem but same thing, done enough and complained about enough that officer will get in trouble. One then has to ask 'how much harm has really be done?', LEOs are going to approach this new law knowing anytime they pull over a latino there is a massively higher chance of that person thinking discrimination is in play, whether it is or not, and will act accordingly, not just liars but people who are inclined to think 'It's cause I look mexican, racist bastard, I was only doing 10 over, here he goes, asking me for my ID like I was an illegal or something' whent he cop probably didn't know the race of the person he pulled over when he hit his flashers and asks everyone for ID. Whether the cop is racist or not, they know they are more likely to be interpreted that way and no one wants to get fired or investigated. I'd be genuinely surprised if any incidents of the bad sort happen with any regularity, let alone a epidemic of them, though I will not be if we hear of lots of cases.