I was stopped for going 85 in a 65 zone. The ticket was marked posted-lidar- estimated. The trooper asked me if I knew how fast i was going and i said yes because the crusze control was on sixty five ...
Even with cruise control on, you can press on the accelerator and go faster than the setting. Since your wife is a witness you could fight it, but you would have to appear in court in MA. Is it worth it?