Power conditioner should sort that out.
:agreed: Bars are awful in this respect. Neon light is even worse. :lol:Fluorescent lights can cause a LOT of buzzing right from your pickups, due to their specific and high intensity EM frequencies. Next time you're there, hit your distortion, and move your guitar around (in front of you, upside down, behind you, etc), see if that makes the buzzing sound sorta wash in and out.