Here's a rewritten and improved version of the provided content in English, with added details to make it more natural and engaging, while ensuring it exceeds 500 characters:
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This is from Martin Nowak:
"I attended the 2013 Chicago Auto Show on February 12th, 2013, and had the chance to see several police and emergency vehicles on display. The F-Series truck was already there last year, so I thought I'd share a video from that time with the lights on: [link to YouTube video](http://www.youtube.com/watch?v=q-NUdwbr8Co)."
Below are some photos I took during the event, featuring various law enforcement and emergency service vehicles:
These images give a nice glimpse into the types of vehicles showcased at the event, many of which are used by local agencies for public safety. It was interesting to see how they were presented alongside regular consumer models.
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Martin Nowak photo
Martin Nowak photo
Martin Nowak photo
Martin Nowak photo
Martin Nowak photo
Martin Nowak photo
Martin Nowak photo
Martin Nowak photo
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