Some of the MSC's require safety vests. The presence or absence of a safety vest has nothing to do with the difficulty of performing the shop or audit. For well under $10, you can go to Lowe's and Home Depot and buy a safety vest. And as a bonus, if you have a breakdown on the side of the road, you can put it on and be noticed.
Shopping Southeast Pennsylvania, Delaware above the canal, and South Jersey since 2008