The turnpike-in regards to patrol- is divided into north, central and south, each of which have their own talkgroups. I am not exactly sure where the boundaries are but its safe to assume you pass through all 3 districts. I'm not familiar with the scanners you were talking about but the NJSP radio system is trunked using frequencies in the range of 850-859 MHZ. All of these talkgroups are in the RR database...New Jersey State Police Trunking System, Statewide, New Jersey - Scanner Frequencies
. Scroll down to patrol roads operations talkgroups.
BCD996XT, BCD396XT, Pro-23, Pro-63, Pro-2038, Pro-107, Infinity VHF Portable 2-Way