Mystery solved! Box on Phoenix utility pole belongs to ATF

Here is another version of the cameras.
Government Hidden Cameras?
Cannon MAC Address F48139EE3F90 / IP 172.19.7.52
Canon VB-H43 Camera Specs ($2300):

1/3" CMOS Progressive Image Sensor...
Focal Length Range: 4.7 to 94mm
H.264/JPEG Video Compression
Intelligent Motion/Tamper Detection
Full-Duplex/Two-Way Audio
Two Input/Two Output Alarm Terminals
Onboard SD Card Storage (good for when no network)
8-Zone Privacy Masking
Onscreen Alerts/Email Alerts w/ Snapshot
Power-over-Ethernet