Penalty for misconduct of person employed to carry or deliver mail bags or postal articles Whoever, being employed to
a) is in a state of intoxication while so employed, or (b) is guilty of carelessness or other misconduct, whereby the safety of any such mail bag or postal article as aforesaid is endangered, or (c) loiters or makes delay in the conveyance or delivery of any such mail bag or postal article as aforesaid, or (d) does not use due care and diligence safely to convey or deliver any such mail bag or postal article as aforesaid.