I just filed a complaint with the FCC over one of these commercials (FWIW -- Wayne Tile that's airing in NJ).
Since I work as an audio engineer I was able to attach a file to my complaint showing that the volume of the ad was more than 15dB higher than the adjacent programming content, a blatant violation of the CALM act.
You don't need to attach a file as long as you can document the name of the advertiser, channel, time and date. Go here and start by checking "Broadcast (TV and Radio), Cable, and Satellite Issues", then "Loud Commercials":
On the form, leave question #2 blank and complete question #3, because your complaint will be with Verizon FiOS TV, not the originating broadcaster itself.