About the only rush hour traffic I deal with these days is when I open the coop in the morning, the chickens are in a hurry to get outside. Of course there is a rush hour when people are going to work or coming home, but I can pretty much time my trips to avoid those.
But yes, when I worked in the New Orleans area it was a pain. I left for work early to beat the rush hour traffic. It made a difference in a 25 minute drive or as much as an hour long trip one way. And that was if there wasn't an accident. That area has very few major roads, an accident on one tends to tie up traffic all over.
Our work hours were pretty flexible any way. For at least a part of that time if you came in early you could leave early. There were limits, I mean you could not come in at 4:00 AM and leave at 1:00, so I volunteered some extra time to the company by coming in early but I was able to leave early enough to avoid the worst of the rush our traffic going home. It didn't hurt me with the boss if I donated some extra time plus I was early enough that I could get a lot of work done before other people started showing up and bothering me. Part of my job was talking to these people but some people just love to chat and waste time. My official hours were 7:30 until 4:30 but I was there by 7:00.
Bottom line, it helped me with my job performance reviews, I was home just as much as I would have been if I had left later, and I didn't get stressed out by waiting in traffic. Plus I was home pretty early to spend time with the family or get something done.
Owning your own business and where you are you probably don't have the flexible hours option. Would mass transit be an option?