I personally wouldn't rely on smelly rugs or similar things. Taking precautionary measures is the way to go.spraying is always a decision of potentially take some of the pesticide remains into your lungs, but has to be done I suppose. I've heard from dem blocks that some mites might actually be scared away by some rugs with animal smell like of a cat or a dog, not sure if that has anything to do with the reality
While most living creatures are attracted by a certain smell, they can also be deterred by certain smells (cat litter/rugs keeps mice away), however it's only a temporary solution with no guarantee to success.
And in many situations, you won't have time to hope that something works, you need to know.
Now I've never ran into a pest issue during flower, only during veg (gnats, spider mites & white flies). But personally, before I'd throw away the whole plant because of an ongoing infestation, I'd risk over-spraying it with *insert your go to spray* and lower the quality of the end product, if that means I'll still be able to harvest.
Scratchy Buds > No Buds
