I read an interesting article yesterday. I don't have the link anymore, but essentially it said that after studying cellphone movement, some researchers figured at the peak of the restrictions, road traffic in the USA was down by roughly 75% in late March. Now, both from lifting of restrictions in some areas, and people just plain ignoring restrictions in other places, road traffic is down by about 35% from normal.
Those numbers sound about right to me. My area doesn't have "shelter-in-place" orders, but folks have been asked to self-isolate and practice social distancing. I've going outside for daily walks (being careful to avoid other folks of course), and in the weeks before the Easter weekend, it was almost a ghost town here - very few vehicles, pedestrians, or bicycles. Since Easter, people have been definitely going out more, and I'd guess that traffic of all kinds has increased substantially.