Me and my 4 other friends went to a Chinese Buffet, we had full intention of paying but 2 of my friends are Vegetarians, after they scanned the buffet they decided not to eat here. By this time 3 of us had full plates, 2 of us didn't eat but one had eaten a little bit. At this point we just walked out, but 2 people followed us and stood at the curb as we got in our car and left, one was on the phone and one had a notepad. We drove around the side of the building so they couldn't get our license plate.

Is this a dine and dash since we didn't eat?