On a Friday night in October, Megan Kasten parked her car for five minutes on Augusta Boulevard near Humboldt Park while she picked up a friend to go see a movie.



A month later, Kasten said she got a warning notice in the mail for speeding past the Northwest Side park at 37 miles per hour, a violation recorded by one of Mayor Rahm Emanuel's new speed cameras.



Certain that she hadn't been speeding, Kasten logged onto the city's website to review the video of her infraction, but the images didn't show her driving at all. Instead, the video and photos recorded by the camera showed her silver Honda Civic sitting parked while a white, four-door car drove by on the other side of the street.



"I was kind of shocked that the camera obviously flashed and it just seemed like it was just picking up all the license plates in the vicinity," said Kasten, 33, a VIP services assistant manager for the Chicago Symphony Orchestra. "I was angry that I was getting a warning ... and then I was wondering if all those other cars got a ticket. I thought (the camera) would be advanced enough that it would pick up the car that was actually moving."



Emanuel transportation officials and the city's speed camera vendor, American Traffic Solutions, both said Kasten's unwarranted warning was a one-off mistake and not indicative of a broader problem with the new system. The camera system operated properly, but employees reviewing the video assigned blame for the speeding to the wrong vehicle, said Deputy Transportation Commissioner Scott Kubly and American Traffic Solutions spokesman Charles Territo.



Kubly said he was not aware of any other case in which the wrong vehicle was mistakenly chosen for a warning or ticket, calling what happened to Kasten an "isolated occurrence."



