If you know the EA work, you know the Tilers Oath. I have examined many a visiting brother. If there is nobody to vouch for them I feel proper procedure is to inspect a current dues card and valid photo ID, check in the book of constituent lodges to ensure the lodge is real, and then administer the Tiler's Oath... this usually starts out with Brother Senior Deacon or myself saying, "please place your hand upon the bible and repeat after me." It's an oath, not memory work... or at least that's how I handle it.
When I spent 10 months in Louisiana I checked in first with the General Secretary of the local Scottish Rite Valley and attended a SR Stated meeting and was there announced as a visiting Brother from the Valley of Austin. There I met a bunch of Brothers who said, "come visit, our stated meeting is next....." Thus when I went to visit usually there was someone to vouch for me, "oh yeah, I sat with him in the Consistory last month."
A few times in Louisiana I did have to show ID / Dues cards and give signs.