Ok, I'm trying to justify what I'm seeing. Is the new panel fully wired in or did he just mount the panel and put in a couple of breakers? If there is only a couple of breakers, and I'm guessing that might be the case, he is just trying to give you power for lights and a few power tools and the small individual breakers will protect the wires from overload in that case.
Clearly he is not done. He may be waiting on the power company to do work on their side of the service. It's hard to say exactly what is going on. I'd suggest giving the electrician a call.