XDriver,
Welcome to the fire! Nice thinking by your uncle, it's suprising how many people DON'T come up with such solutions (well, it should be suprising).
Here in Houston the local Walmarts have their cheap vinyl hunter's safety vests on clearance. I prefer keeping a brightly colored, highly reflective safety vest in our vehicles. If I'm changing a tire or rendering aid by the road I want to be SEEN.
-Blast