Do the contrary which is what I did for years at the haunts, tell 'em, "it is indeed heavy and it would be appreciative of a break of the tires"

In fact, I've got the ultimate sleeper garb for you.
Hang some giant fuzzy dice on the windshield rear view mirror, install extreme shaggy fluorescent fuzz on the rear package tray, a very smallish fake scoop on the hood with chrome letters indicating "440 Hemi", dice door lock tips, fake flames decals on the rear wheel wells and go get their $$.
That will really annoy 'em.LOL.