Selfish city workers

I still can't figure out why these idiots insist on blocking all the streets when they remove the trash. I was told by someone that had this job once that they are to line the trucks up in one lane, one behind the other, in order to allow traffic flow but these spiteful guys always block traffic and take their sweet time making everyone fume. Talk about a waste of gas, I must have waited a good 10 minutes for these idiots. I was in a situation where I was unable to turn around and take another route.