There are always cases that are out of the ordinary.
I personally have been in MU consists that have attained 102 and another 95.
The first was an "unequipped" no passenger equipment train (PBY)...the speed control was cut out due to failure...and it was around 4 AM. Had Absolute Clears all the way.
The second was due to the quirk that used to exist on certain tracks somewhere between Metropolitan and Harold Interlockings.
The current in the rails was high enough for the Engineer to effectively attain an electric cutout with a 180 code (MAS). That situation has long since been rectified. (Both Engineers are retired. And I forget who they were, anyway.
But the fact remains that with properly functioning
ATC or ASC, MAS will be enforced at nominal 80 for the electrics.
Is it possible that once, in the history of the LIRR, a train whizzed through NHP at over 80? Sure. Due to some anomaly. Is it a daily occurance? No way.
These days, an Engineer would have to be a little nuts to do 95 or 100, even if he could. The M-7 has extensive event recorder monitoring parameters and GPS. If the LIRR wanted to, they could have an immediate alert to 204 and/or Central Control, that a train was above, say 85 MPH, and trial papers could await the Engineer upon arrival at the train's end terminal.
That's not a joke or an idle threat...the technology is in place.