Hello from Germany,
I forwarded the picture to some people at Mittelberg (Kleinwalsertal, Austria), since the location fits to the "V" Vorarlberg-number-plate (as others stated before).
Today I got the answer from the Mittelberg-chronist, Mr. Heim. He cannot associate the buildings and the mountains to Mittelberg and ist very, very sure that it is another town.
He had another suggestion, and I will give it a try the next days. Some things are easier done from over here...
I could not read the writings on the bus myself, but took a look at the buildings and writing in the back:
You can see 2 names of stores:
"Rud. Maag" (Rud. = Rudolf) which is/was a chemical factory in Switzerland (Dr. Rudolf Maag AG) with main focus on agriculture, sitting in Dielsdorf.
The other one is "Schlapfer" or "Schläpfer". Using Google you again find many hits in Switzerland, mostly "Schläpfer".
And then you can read the words "Ausnahmeverkauf", which is not a common German term ("Ausnahme" means "exception" and "Verkauf" means "sale", but I never heard "Ausnahmeverkauf" in combination before). But it is used in Switzerland for "clearance sale" (in Germany we would call it "Räumungsverkauf" or "Ausverkauf").
So from my point of view the pictures are very likely taken in Switzerland, not in Austria (but the bus is definitely licensed in Vorarlberg, Austria). But remember that in the alps the borders were the mountains, not "lines on pieces of paper". Mittelberg for example is an Austrian town, but the only roads to get there are from Germany (not from Austria).
Maybe it could help to find out which Hotel it is in front. "Hotel Garni" is not the name, "Garni" means that it is a hotel where you can only get breakfast (no lunch, no dinner).
So much for today, I will keep investigating...
Regards
Jörg Fischer