That sounds terrible. I'm very sensitive to inductor whine - I'm sure there are a few hotels who thought they had a schizophrenic guest based on the lengths I sometimes go through to unplug whiny power supplies in hotels - but not to the point of routinely hearing it under normal daytime conditions.
Have you considered moving to one of those places near a radio observatory where people aren't allowed to use electronics?
I had tremendous problem with my landlord in Urbana about that; outside my apartment there was some electrical apparatus and the whine resonated throughout, but neither he nor his wife could hear it. I had to bring a couple of young neighbors to confirm that there was a noise and until this was done he really thought I had gone insane; the good thing was that after some adjustments by the electrician the noise stopped.
Sonic pest repellants? Supposed to be ultrasonic, but some work around 13 kHz, I've heard... (Oh, and I have a roll of black PVC tape in my travel bag for taping over hotel air condition LEDs. I don't understand why they have to make them light up the entire room.)
Have you considered moving to one of those places near a radio observatory where people aren't allowed to use electronics?