Well that is good to know. I don't know exactly how fast I slow down, but traffic permitting I do slow down quickly and early to conserve momentum (brake a little and early rather than a lot and late). If you are coming to an obstruction that needs time to clear (and you have some hope of timing your arrival when it just clears) this is the most efficient method I know of, not a long slow decel but a quick speed adjustment as soon as possible. So they will reward people for not driving efficiently if 7mph/sec is a violation in their eyes (about 0.3G?)
I understand the intent, but I likely will save vastly more money being a good hypermiler and not worrying about what the out of touch bean counters dreamed up as metrics