iPhone 11 is stuck on Enter Wi-Fi Password

I went for a walk and my iPhone in my pocket associated with a random Wi-Fi network. I am stuck on the enter the password screen and whilst I can write on the key board I can't get out of this screen. I tried to power the phone off and whilst I have got to the screen showing slide to power off and SOS calls only, the Enter password is still preventing me from powering down to reboot.