Oh yeah, that's for sure what they would have done with functioning bombs - bury them. And tell nobody.
The nuclear weapon project was pretty lame - as you mentioned before, a lot of the talent was long driven out of the country and academic positions. And there was no focus on it by the government after the war started. Even in the US it took massive government support and a special group of talented scientists - the big progress was made after the European part of WW2 had ended.
G