Yes and no.
Assuming this isn't normal work for you, you would be tired and should not get any further exercise. You wouldn't perform well anyway.
If you have a goal to "exercise for 30 minutes daily" consider that goal met. Your extra work isn't really 'trackable', but it will count for just being active and getting "some exercise".
Manually enter it as the time spent and enter 1 for calories burned. Forget about the calories. It's not going to make a difference whether you count them or not.
Remember success is made up of a pattern of behaviours over days and weeks, not any individual decision. So this means that screwing up one day of eating doesn't really matter if you stay on track the rest of the week, and whether or not to count some 'bonus activity' as "exercise" doesn't really matter if you're on track the rest of the week.
Don't fret the small stuff.
Deb, in New Zealand