I'm sorry that happened. Did you submit an official complaint through LSAC? Under "LSAT Status" you can submit an official or unofficial complaint through "Submit test day feedback." If you submit it as an official complaint, they review it, and if they agree with you, you can request a re-take.

I also had issues with my proctor and submitted an official complaint requesting a retest (can't say I'm thrilled about the options presented, however).