Yes, that’s a wedding ring.
This is a classic business man move that I’ve seen too many times.
Away from home on a business trip? Just pop off that wedding ring and leave it in the car. Maybe there are ladies in the bar that will be an easy lay. His wife doesn’t have to know.
Other than the ridiculously obvious tan line where your wedding ring was (even I could see it and I didn’t look very hard) no one will be able to tell that you’re looking to cheat on your wife.
On the flip side, I’ve never once seen a woman pop off her wedding ring and leave it in the car.