What TV show was this?

I caught a piece of this TV episode many years ago but did not see the beginning nor the end. I think that it was an anthology show and that Steve McQueen was just in this one episode. I thought it may have been "the Twilight Zone" but do not see it in SM's credits. I checked his other credits but the plots don't seem to match up. Maybe I missed it.

The story was set in modern times which seemed to be late 50's/early 60's. The location must have been Nevada, in a small cafe which had at least one slot machine. I don't think it was an actual casino but it may have been a small one. Steve McQueen has some sort of gadget which will cause the slot machine to hit a jackpot. But his girl talks him out of using it. He plays the slot mafchine anyway, without using the gadget, and hits the jackpot. But the gadget then falls out of his pocket. So now he's in trouble, with either the law or the owners. That's all I saw.

Thanks!