TULSA, Oklahoma - New dashcam video shows the dangers first responders can face while out on the roads, helping drivers during winter weather. The video shows a chain-reaction crash that led to a state trooper nearly getting hit Wednesday night on Interstate 44.

Slow down or move over isn't just a saying emergency crews use, but it's the law.

And not doing so especially in winter weather conditions can cost you or any of the first responders their lives.

Video from an Oklahoma Highway Patrol Trooper's dashcam captures the moment a woman hits a Tulsa police officer sitting in his car, before hitting another vehicle which almost hit a trooper.

"I think my body was just going a lot faster than my feet could take me. I was trying to get out of the way, but yes it was a close call," said Lt. Colby Overstreet with the Oklahoma Highway Patrol.

The Tulsa police officer and Lt. Overstreet were not hurt. Slick conditions are believed to have caused that crash and many other crashes throughout Green Country Wednesday night, including a 21-vehicle crash on the west side of Tulsa.

Overstreet said people need to slow down in those conditions.

"Take a little bit of extra time - slow down just a little bit and plan ahead and allow for a little bit of extra time to get where you are going," said Lt. Colby Overstreet with the Oklahoma Highway Patrol.

Tow Truck Driver Freeman Aiken said when drivers see flashing emergency lights they need to slow down or move over.

"I got three daughters, and three boys. My oldest daughter is 20, my youngest is 3, my youngest son is 5, my oldest son is 19, and I love everyone of them and I want to go home," said Freeman Aiken, a tow truck driver with Mike's Towing.

Because crashes like this one can mean the difference between a first responder going home to his or her family at the end of the night or being hurt and even killed.

"Everyday we take a chance on our life to make sure they get their car gets home safe - everything we do we do to help people," said Freeman Aiken, a tow truck driver with Mike's Towing.

"From us to the firefighters to the tow truck drivers, we all wanna go home to our families at night," said Lt. Colby Overstreet with the Oklahoma Highway Patrol.

Troopers said that driver was given a ticket for driving at an unsafe speed for the conditions.