Much ado about very little. This might give some insight about the type of person he is, or wants us to think he is, but it does very little to indicate how he actually does his job.
As far as the posting on duty goes, he may have been on a break or, otherwise, 908 (out of service).
Idiot? Probably, but, incompetent, who knows.
Where have you ever met a competent idiot?