I'd probably find the proper channels to report such wasteful practices.
I'm in continuing disputes about the local government's wastefulness, laziness and lack of care. We had no drains outside our house for years, and it took almost 4 years and 17 complaints to get it sorted - despite them having an office that overlooked the street that flooded when it rained heavily!
They charge us about $1500 for additional services - principally cleaning the area between the house and the street - which they spend no more than 20 minutes a week cleaning. I've taken to photographing the dirt and refuse, as I'm refusing to pay for these poor quality and very costly services.
If everyone else refused to pay for these services, they would not have the money to waste on over-heating the library.
I then tried a public museum with a study centre, only to be told after a few weeks that I couldn't plug my laptop into their mains supply! (I believe that really they just wanted to get rid of me, since the rest of the study centre was always empty, and it was clear that I was programming not studying their collection.)
Finally, the best option of all is a museum that has a private members' room. I'm often the only person there. Not only that, but there is a cafe in the members room', and toilets just outside. And all for about $100 a year. I don't think the Members Room has wifi, but that's not a problem for me. I avoid microsoft whenever possible, but my Windows Mobile phone allows me to share its internet connection (and the sharing works with os x, windows, and linux).
When I want some relief from work, I go for a stroll round the museum. I love libraries, but I find the visual stimulus of thousands of different artifacts a fine contrast after staring at words on a screen for a couple of hours.