Dump Truck Protest

I work in lower Penn Quarter and right now I’m being serenaded by dump truck horns. If I stick my head around a colleague’s cubical I can sort of see a huge convoy of building construction dump trucks. Some of them have signs. Unfortunately the only one I could read said “Fuel Costs”. There was another that might have said something about occupational safety or another about insurance. A periodic complaint we have on our floor is it is nearly impossible to read protester’s signs, so we spend most of our time trying to figure out what the heck is the message.
The on going, cacophony of truck horns sounds like the brass section tuning up.

Update= I went down to the street level to take a look, one sign said “Fair Compensation”, which looks like “New Construction” from the office window. Also from the street, those horns are loud.