Yep, I was the one that submitted the talkgroup to the database. I heard some activity/chatter about a toll collector emergency panic button that was pushed, and that a trooper was enroute to Interchange 11 a few months ago. I talked with my contact, and he told me that they added a talkgroup to the Toll Booths on both the TP and the GSP when the new system came on-line, but that it was recently activated. While I'm unaware of the actual talkgroup designator name, that's what it's used for.
As a side note, I was also told that there are other talkgroups for both the Garden State Parkway and the NJ Turnpike that are designated "Fleetwide," but I have yet to identify them. A number of my contacts have retired as well from the NJTA, and aside from the occasional run-in with the one I get my info from, it's gonna be tough for me to ID everything accurately for database submission. There is also a TG (46?) for the Trades - Electrical division, but because I don't have a positive ID on it, I can't submit it to the database for inclusion, per RR policy. I have also heard activity on TG 47 as well, but have not been able to ID that one as well.