ROCHESTER, N.Y. -- Daryl Kozak's job requires him to install everything from car stereos to car starters.

"Generally when I put things in vehicles and it makes the people happy," Kozak said.

There's another part of his job that's not enjoyable at all.

"They understand they got themselves into this," Kozak said. "They generally don't give me a hard time or anything."

State law requires anyone convicted of a drunk driving offense to have an ignition interlock device installed in their vehicle.

"They're all walks of life," Kozak said. "Men, women, young, old."

The ignition interlock device requires a person to pass an alcohol screening before they can start their car.

"The prompt will come up and tell you to blow, then you simply blow into it," Kozak said.

Violations are recorded by the device and it makes sure the correct person is using it.

"They take your photograph every time you blow into it, so it needs to see the driver in the driver's seat," Kozak said.

Rochester city court judge Leticia Astacio was charged with DWI back in February, following an accident on Route 490. Astacio appeared before a judge Tuesday, after prosecutors say she had two ignition interlock device violations, including one where her blood alcohol level was .067; over the legal limit for impairment.  

"Anytime there's a violation or a lockout, it gets uploaded and sent to the probation department," DWI lawyer Todd Wisner said.

Wisner says in New York a .05 blood alcohol level constitutes a serious violation, but some judges and some counties have a zero tolerance policy. Prosecutors say Astacio was under orders not to drink. 

"So what the judges have gone to is, 'listen, you can't have any alcohol in your system,'" Wisner said. "So if it shows any alcohol in your system, then it results in a violation."

Astacio's attorney told us the judge's daughter blew into the ignition interlock and then drove the car. Legal experts say that in and of itself does not constitute a violation.

Wisner says it's not adviseable, because a defendant could still be on the hook for violations or other issues.

"I wouldn't advise anyone else to drive the car," Wisner said. "It looks like you're trying to circumvent the process."

"Most people take responsibility for it," Kozak said. "They're pretty good about it."

They're part of the punishment. A constant, cumbersome reminder. Ignition interlocks teach hard lessons as a result of poor choices. 

"Most people just want to get through it and move on with their lives," Kozak said. "The day they get it taken out it's a good day, but, it does, it stops drunk driving."