My phone (and Samsung Health) did something it's never done before tonight

I went to Costco and explored some more, since I was interrupted last time. My phone decided that I was doing a workout and once detected, saved the particulars (3.3 mph, 0.8 miles, 14 minutes 31 seconds total, with 113 calories burned). :) That puts me at 83 minutes total activity for the day, and 8,210 steps, 4.40 miles, and 742 calories burned. Not bad, really.