Exactly the same cr*p I dealt with for around 12 months whilst I did a job as a part's delivery driver for a large car dealer here in South Wales some 6 years ago.
I usually had two A4 sheets full of deliveries to get done around the whole of South Wales in 8hrs. Every morning I had to check the van, check the parcels (parts), load the van, write out my delivery schedule order, plan my route and then leave for the day.
The manager of the parts department was a total ar*e with no people skills who had no idea of the pressure he put his staff under to accomplish impossible delivery schedules each day. I was on minimum wage and had worked the first 6 months their for free just to get my foot in the door (Job Centre scheme). They piled on so many deliveries each day that it was almost impossible to ever get them all done in one day with some garages being so far apart.
I was expected to keep going until I had delivered them all even though I didn't get paid to work after 5pm. Most days lunch was a 5 minute affair or not even done until the end of the day after I had done my deliveries if at all.
I only started to do the job as I wanted to work so agreed to do the JC scheme that other people wouldn't do. Tbh I was pretty happy when they said they wouldn't be employing me on another 6 month contract as the deliveries had stopped coming in such high demand & I was the last delivery driver employed.