Thanks Joe! I'm not sure, this photo was from a 2015 street view shot, they were also there in a 2016 shot but it was a dull rainy day. Hopefully they can keep them going as long as possible.
Yeah there a few privately owned SOX installs still hanging on around here but I'd imagine they would get replaced as the lamp burn out and they realize they can't find any replacements. The SOX crosswalk signs here have been slowly getting replaced with LED ones probably for that reason.