Police cited 94-year-old Robert Halliday for driving too fast for conditions in connection with the crash.
Officers are still investigating what happened and could add a charge for leaving the scene and not reporting the damage.
The crash occurred just before 3 p.m. Monday near the Old Barn Drive/Creekfield Place intersection just east of Eagle Road.
A witness saw a gold or champagne-colored sedan drive into the post and knock it down. The driver — who the witness described as “elderly” — then kept going. The witness didn’t know who the driver was but tell Eagle Police about what happened.
That information and some photos went out over the ACSO Twitter account and local media outlets. Eagle Police eventually identified Halliday as the driver after an acquaintance of his saw a report on the news Tuesday morning about what happened.