Is being unobservant a symptom of ADD?

My husband came home from work and I went to run an errand in his car. (Both our names are on it, but he usually drives it.) When I got home I asked him "So how long has your windshield been broken and how come you didn't tell me?" He did not believe me that his windshield was broken and had to go out and look at it. He has no idea how long it's been broken. This is a man who drives hundreds of mile s a week. I was last in the car Saturday and it wasn't broken then.

My question: Is it typical for ADDers to be that unobservant? Are they really in that much of a fog? Granted, he's out of his meds and I can't get him to go by the doctor's office and pick up a new prescription. Anyone had a similar experience?