I think Cambridge has a similar rule, though I don't know if it applies to all licenseholders--didn't it become an issue when Lord Hobo opened up?

My sense is that rules like this tend to contribute to high food prices--if you get two beers and a $10 burger there's a good chance that you're going to actually hurt the ratio under that rule. I wonder if you could accomplish something similar by simply requiring all patrons to be seated when served, or some other approach...?