we had rented an apartment at the beach once, and got a note while we were there saying that their annual bug people were going to be coming around on day x to fumigate the place, so we would need to be aware that tradies would be coming in and out that morning/arvo to do so, or we could just pop out and they'd let the tradies in and out, in our absence ...

we told them that no, they wouldn't be, as we'd rented the place for the week, we were going to be using the place for the week, and our use of the place absolutely did not include noisy intrusive work being done (not that we think the people working were going to be prying or being intentionally loud or steal stuff, etc) - we'd paid for private and quiet enjoyment of the place, and they can do their blessed fumigation some time when we're not paying to be there.

(not to mention the fact that there's no way on God's great earth that DH and I were going to stay somewhere with my son, and while I was pregnant, which had just been fumigated!!)

I think your DH did the right thing too ... I hope he gets the work all back and more