It is illegal to attach a vending machine to a utility pole without prior consent from the utility company.

RCW 70.54.090 Attachment of objects to utility poles. It shall be unlawful to attach to utility poles any of the following: Advertising signs, posters, vending machines, or any similar object which presents a hazard to, or endangers the lives of, electrical workers. Any attachment to utility poles shall only be made with the permission of…