I find that my neighbours washing, which goes out when the sun comes out and is less than seven metres from my apiary tends not to be affected. I make a point of not interfering with the bees when there is washing out and their normal flight lines takes them away from the apiary two or three metres to the West of the end of their washing line.
Contrast the story told a while ago about the man who clipped a leylandi hedge and then put the newly washed cars back last September/October. My bees from his orchard found the freshly trimmed leylandi having flown over a white van three metres away, which was untouched and proceeded to vacate their bowls all over the clean cars parked under the clipped trees, doubtless in preparation for feasting on the bleeding sap.
Exceptional behaviour.