WHITEHOUSE - On Saturday, Lake Tyler was bustling with folks taking advantage of the sunshine and warm weather.

For Smith County game warden Chris Green - that means it's time to patrol the waters.

But when Green decided to grab a bite to eat near the lake in Whitehouse Saturday afternoon, he came across some driving behavior not commonly seen in the middle of the day.

"There was a truck in front of me that was weaving from side to side and I was, you know, observing it.  I thought they might be on the cell phone or texting.  I was gonna stop them and tell them they couldn't do that," Green said.

Then the truck hit a driver stopped at the red light and veered into oncoming traffic.

After Green forced the young man out of the truck, he cuffed him and sat him down on the side of the road while he cleared traffic and called Whitehouse P.D.

"Clearly his eyes were just, you know, they were dialating, going every which way, and clearly impaired on something," Green said.

He says alcohol was found in the vehicle.

"It's all about public safety.  We need to keep our roads out here safe.  Especially on a pretty day when families are getting out, they're enjoying this spring-like weather and hey they don't want to run in to a guy like this that's obviously being a knucklehead and shouldn't be on the road," Green said.

Green told us the young man was to be booked into a Smith County Jail and charged with driving under the influence.