I start both of my Helpers at 11:30 when I drop off the golf cart route. The last three days, the golf cart driver was there at 11:15 and had the cart and trailer out of the storage box ready to go, so I started him then so he could help unload my package car. If I tell my Helper I will be at the meet point at a certain time and I am running a few minutes late while knocking out a section, I pay him from the agreed start time. Its my fault for running late, not his.
To the OP, sorry you were robbed and I'm glad that you are OK. We are easy targets, I change the spots where I take my breaks all the time.