If you say something like this on FR, you should be able to back it up.
BTW, those locations I mentioned above, were places that I availed myself of the office couch, fold out bed, or futon for months at a time. Not just a night here and there.
My office is less than 5 miles from my home so I rarely sleep there. But I have on several occasions and it defies logic to say doing so was illegal.