How can I allow for the password protect feature to allow visitors to enter any number at all?

i agree with s_ha_dum, this is not exactly very protective… but what you could do is build a validation form with jquery and if it passes then convert into the actual password.

example:

real password you created:
0123456789

user enters any ten digits:
6537268574

with jquery you can store the value entered somewhere (if you will need it further on) and then change that password field to ‘0123456789’

two caveats:
as mentioned before, really not much protection at all…
and also, this would mean that everyone is logging into the same user, which could present some problems down the road.