So say for instance a job that they offer is just too far to drive, or doesn't pay enough, you can deny it and they're ok with that?
I think you should absolutely try it, including as suggested, try applying to several temp firms. It's a big market and open shop contractors do have to depend on temps because the industry conforms to artificially short allowances for construction time. There is some workflow that will always go to temps. Contractors who need to man the workforce up and down rapidly.
The travel killed the deal for me. The next job they had was two hours travel in the medium truck and I offered that they would pay my time one way on the road, which they could not do. Nor would they factor the truck cost into my pay rate, which was lower than necessary.
Just remember as a temp don't kill yourself on the job. They will just drag you to the curb and call town DPW to report a dead raccoon on the side of the road.
Several times I've shown up late morning at jobs as the electrical sub, just after incidents that nearly killed temps working for other trades, CO poisoning, falls of heavy steel. Many more times I saw incidents that could happen and kill people but did not. Some of the temps will have a hard time sweeping floors, but the pay will be the same. On a large job there will be a lot of danger from guys who have no clue and do not care.
It will certainly be an experience.