Yes, as far as I know, the UHF radios had PL.
I remember it being said that to use Ch. 3 (460.500/154.905 cross-band repeater to GA intrastate channel), turn off your "Channel Guard." On the old General Electric radios, "Channel Guard" was their term for PL.
It would make sense to me that the 800 freqs are probably talk around channels.