How can I solve this use case?

I have encountered a use case today that I didn't know how to efficiently solve.

I was in the city and went to the University library to print something before they closed in 10 minutes, so I had to rush. In order to print from the workstations there, I needed to log in with my credentials. The problem was that I had changed the password for my account to a 30 character password with numbers and special characters. I had my iPhone with 1Password with me, but it seemed unpractical to copy the password character by character in the 10 minutes I had left before they closed. So I was curious as to what the solution to a use case like this is. Obviously I couldn't open 1Password Anywhere on the workstation, as I needed to log in first. This is also relevant when I'm not pressed for time, as copying a 30 char password is very unpractical. The printers there are only hooked up to the workstations, so I couldn't use my MacBook.