But this would attract the ladeeeez
On one occasion, while wearing my RAFVR(T) uniform (same as a 'normal' RAF officer, but with a gilt 'VRT' pin in the rank slides) I was asked whether I was in the Salvation Army. Minutes later someone mistook me for a parking attendant and asked whether he would be okay to leave his car parked on the double yellow lines.
Jolly lucky no-one asked you to start their car as well - many an RAF officer has been mistaken for an RAC patrol person.