As to music stores and not wanting to get exposed to the Covfefe Plague... You could order a tuner, or a tuning fork, or a pitch pipe from somebody like Musician's Friend and have it shipped to your house. If you want further security, let the package sit for a week and that should render it safe. Covfefe doesn't seem do well outside the body where it has nothing to prey on.
Captcha is a total pain in the........