R, your right. I belive the OP is on the wrong track with the meter to use.
According to the CAC
http://www.cinemaadcouncil.org/docs/...kbsof0wtrk.pdf
"Additionally, on the source/production side, the recommended average sound level of rolling stock advertisements shall be 82 decibels (based on the LEQ(m) loudness measurement)."
So that would be measured with the Dolby 737 at 82.