If it were Florida I would have understood either him being naked, or making headlines by wearing clothes. I wasn’t aware that wearing street clothes in Detroit was something to be included in a headline.
Postal employees driving official postal vehicles wear uniforms. So that’s indicative that the activities might not be performance of official and legal duties.
I think the point is that he is not wearing a Postal Service uniform. I’m not sure what to make of that.
Did a USPS employee loan the vehicle out?
Is this a USPS employee off duty?
Is this a fake USPS vehicle?
Any other explanations?