Just a quick perspective.
There are about 900,000 sworn officers in the US. Some work in in admin and investigative jobs with little citizen contact, but for the sake of the argument lets say 500,000 work in a capacity where they have citizen contacts.
If 500,000 officers work 4 shifts a week, 48 weeks a year, and contact 5 people per shift (most active LEOs will know that's an absurdly low average), that's 480,000,000 a year. LEOs kill an average of 1200 people a year, according to some sources.
That means during a police contact, a person has about a 1 in 400,000 chance of being killed by police. A whopping 0.0000025 percent chance. This includes active shooters, murderers, violent felons, etc.
If we reduce that number further to police killings where an officer is charged with a crime as a result (about 5 a year), it leaves us with a frightening 1 in 80,000,000 chance.
I'm not saying something couldn't happen, but I am saying in any one year period you are about 114 times more likely to be struck by lightning than you are to be murdered by police during a traffic stop.
As someone has already said, it's not rocket science. Hands visible, inform officer immediately, wait for instructions.