More likely moving into their night feeding fields
or fleeing coyotes...
There are lots and lots of deer...and they cross roads
all night long...
Early evening and early morning especially...
I have had good sized herds of deer feeding in my yard
at 9PM, 1AM, and 10AM all depending on the time of year.
Damn deer raise hell with my wife's roses. One of these mornings she is going to kill one with a broom. I come home early and find em laying on the front yard. They really are hard on the flowers. We live on the edge of town. One of the joys of living in Colorado.