Muffer Man
The term "Muffler Man" has been given to a series of roadside giants that were produced in California. Their original purpose was to advertise establishments that perform work on auto and truck exhaust systems: hence the term "Muffler Man" since their production started in the 1960s, these giants have been used for many other purposes, generally advertising. He used to hold a muffler in his hands.
Park on the shoulder of the road so not to bother Bob's Auto.