Wow! For a moment, I thought the video would show the officer actually playing video poker.
It shows that his in-car computer screen is on a page which could be a video poker site. You can't see the officer.
My guess, based on 23 years of experience as a cop --
In snow, officers are often told to do "stationary" patrol -- that is, park it somewhere and go to a call if you get one. It cuts down on accidents.
Bored, he goes to the site, gets a call, and drives there without clearing the screen first.
Felony? No.
Misdemeanor? No.
Against department regulations? Probably not.
Traffic violation? No.
Blown out of proportion by a self-righteous gadfly? Yes.