I spoke with the inspector prior to his visit(couple months) had my ducks in a row. He was very open to telling me the minimum requirements for pennsylvania. He also kinda let me know how he felt the minimum will not be usable in the real world of vending/catering. So i took it upon myself to ready my truck for his skeptical eyes. I had tax number framed...servsafe cert. framed...ect.
I even had a stupid no smoking sign in the truck. So, if you look serious to the inspector, they believe you are!