I understand the need to not supplying safety glasses to teams who should have their own. But how about this? Get some UGLY safety glasses. Attach a large object on a cable to them. They can be two minute loaners to allow someone get to the pits to get their own.
No excuse for rudeness but, with as many volunteers need to run an event the size of championships you are bound to get a few bad ones. Be glad she was handing out safety glasses & not inspecting robots.
Speaking of Einstein. "Insanity: doing the same thing over and over again and expecting different results." Couldn't you use a different entrance?