We left a #2 Camalot (and biner) inadvertently at top of p3 or p4 belay (depending how you do it), and did not go back for it due to hail/rain at top of next pitch.
I love that route...hope you took some awesome pics and will post them up to MP sometime,,,been almost 30 years since I was on Halletts Peak....great place!..best luck on getting your gear back too.