He probably sends you there becasue there still package that need to be put in the trucks and it make him look good to send his guys to help. When he send you there just take you time don't bust your ass becasue if he sees you getting the job done he's going to keep sending you there to do it. Don't argue with him if he really pisses you off don't talk to him just do your job and ignore him. I use to like doing that to my SUP it would piss him right off and he could not do anything about it.