Sounds normal now. There was a large amount of rain overnight (we were under flash flood warnings between 3 - 6 AM) so they may have had to bring in extra manpower to clear the drains and passed out some spare radios using the various extra channels for them to coordinate their activities. This may have caused the Public Works traffic to be heard on the feeds. Since it no longer appears to be going on, I can't confirm which talkgroups they were on to confirm/disprove this however.
Perhaps the feed provider can update this thread once they get home from work and check things as well.