What the ... ??

As Kristi and I left home this morning this was the scene on eleventh
ave ... Water everywhere!!? When Kristi asked the guy with the broom
what was going on, he said that there was dust on the road and the BMW
dealership had complained, so he was washing it off ... By opening up
the fire hydrant?!!!!

What the ... !!??

(PS - As we came home tonight we noticed that there was still dirt
EVERYWHERE on the road??)