verification code

If it is waiting for a 2 factor code, you are going to need to have to have one of your trusted devices with you before you can use it. That is the purpose of 2 factor is to prevent those that are not supposed to have access to your device to get it. You should be able to tap that you did not get the code, but if you do not have one of your trusted devices with you, you will have to wait until you get one of them.

If you don’t have a trusted device, not access to a trusted telephone number to receive a call, no.

Pragmatically, this case is little different from a lost or stolen iPad, based on what access you do and do not have.