There are a number of vendors that sell a temporary clear film designed for track day use that you could use. Much less expensive than permanent Expel, 3M, etc applications and it won't mess up your paint like an old-school bra would. A quick Google search gets me to
https://www.amazon.com/TrackArmour-T.../dp/B07F3CN5CY
6"x 100' for $45