Joe, this was over 30 years ago and I was Greyhounding all around the US and Canada (I covered around 10,000 miles in 2 months), so I can't recall quite where it was - but it was probably somewhere out in the sticks.

At the time, and in the places I visited, I found that I was usually offered "Lea & Perrins". If I'd asked for Worcester or Worcestershire sauce, (which are of course pronounced "Wooster" and "Woostersher") I'd have caused even more bafflement than I did anyway.

Apart from the barrier of a common language, I was surprised at first to find just how "foreign" everything felt. I suppose I'd unconsciously assumed that because we speak more or less the same language, and because American culture is so familiar from TV, that there would be less of a culture shock. It took me some time to adjust to the fact that people did things differently and made different assumptions - something I'd take for granted when visiting, say, France or Germany but which I hadn't been prepared for.