Depending on your definition "fluent", but so far I think nowadays the most people will understand someone talking in Englisch. It might need some minutes until they figured exaclty out what they meant, but it has so far never been a problem.

They will most likely not start in Englisch themselves for the reason given by Oliver2002, but if they are addressed in English Language, they will try to communicate. I have experienced this with non German speaking friends or non German Speakers foreigners in my hometown or in the countryside in Northrhine-Westphalia as well as Rhineland-Palantine quite a few times ... Of course, their (like mine) Englisch will not always use the wrong grammar or words in the exact meaning ...

For the records I am living in the countryside, though not in Bavaria but in Nortrhine Westphalia, and had a couple of times non-German speaking friends who were able to get the right information they needed without my help. There is at last possibility someone knowing someone who talks Englisch.

Btw, Pegnitz is no problem to find someone talking in English. If you adress the old people (above 60 or 70) you might have some problems, but they are enough younger people around ... (I am for business reason once a year in Pegnitz, I think I can justify my statement)