Three codes could be found in the RPE IN CHICAGO — SIGNUPS CLOSING TOMORROW post on the Investigate Ingress blog.
[1] hyo536633qa6
[2] 67768632577385628374826184655037506167
[3] etwhheseefvfeonrftiyvieeelidgshittsseovwennrtehwraeredosh
Code #1
Observations
16 characters with some 3xtr4 numbers
Code #2
Observations
Half & Half
Code #3
Observations
Hop & Sub