Here's the crash dump. I'll try to narrow down the exact record that's generating the failure.

Suggestions for patching my way around this?

Invalid control character '\n' at: line 63227 column 678 (char 1625940)
Traceback (most recent call last):
  File "./chupaESRI.py", line 266, in <module>
    jp = EsriJSON2Pg(arcjson)
  File "./chupaESRI.py", line 37, in __init__
    self.srcjson = json.loads(jsonstr)
  File "/usr/local/lib/python2.7/site-packages/simplejson/__init__.py", line 516, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python2.7/site-packages/simplejson/decoder.py", line 370, in decode
    obj, end = self.raw_decode(s)
  File "/usr/local/lib/python2.7/site-packages/simplejson/decoder.py", line 400, in raw_decode
    return self.scan_once(s, idx=_w(s, idx).end())
JSONDecodeError: Invalid control character '\n' at: line 63227 column 678 (char 1625940)

Failed on:  /arcgisshared/rest/services/WashCo_Dynamic/MapServer/110/query?where=objectid+>%3D+100001+AND+objectid+<%3D+101000&text=&objectIds=&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&maxAllowableOffset=&geometryPrecision=&outSR=&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&returnDistinctValues=false&f=pjson

pointed the script from the command line at

http://arcgisserver.semcog.org/arcgis/rest/services/BuildingFootprints/MapServer/2/query

to test it out. here's what the PG layer looks like loaded up in QGIS:

about 100 of the features had one point with the longitude "cut off", like so:

{"type":"MultiPolygon",
"coordinates":
[[[[13506280.5777559,333401.299540699],
[13506310.0249344,333343.036089242],
[13506340.0593832,333358.21620737],
[13506328.0534777,333381.971128613],
[13506367.4163386,333401.865813643],
[13506374.8458005,333387.16568242],
[13506377.1305774,333388.320538059],
[13506418.2496719,333306.963910773],
[13506379.3402231,333287.298556462],
[13506375.7244094,333294.452755913],
[13506361.0564304,333287.039370075],
[13506355.8576116,333297.324803144],
[13506304.769685,333271.503937006],
[13506290.8940289,333298.957349077],
[13506260.234252,333283.461614177],
[13506281.8251313,333240.742454067],
[13506248.2788714,333223.787729681],
[13506209.5357612,333300.443241477],
[13506204.3818897,333297.838254586],
[13506192.8385827,333320.676837265],
[13506199.593832,333324.090879261],
[13506184.5462598,333353.863188982],
[13506214.8070866,333369.157480329],
[13506217.8507218,333363.135170624],
[13506248.6558399,333378.704724416],
[13506231.7276903,333412.198490813],
[13506251.5400263,333422.212270334],
[1350624,333437.130577445], // <<< problem coordinate!
[13506328.9796588,333480.080708683],
[13506341.3802493,333455.545275584],
[13506336.2562336,333452.955708668],
[13506340.6925852,333444.177821532],
[13506329.5485564,333438.545603678],
[13506334.5790682,333428.592847779],
[13506280.5777559,333401.299540699]]]]}

I am getting an error socket.gaierror: [Errno 11004] get addrinfo failed.

The input url parameter is - "https://server.arcgisonline.com/ArcGIS/rest/services/Specialty/Soil_Survey_Map/MapServer/0/?f=pjson"

I have also tried from IP address but getting the error - "error: [Errno 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond"

Feel free to check out the strategies from "planning downloads" here: https://github.com/koopjs/featureservice/blob/master/index.js#L330-L371

Hope this helps!