CUNY Academic Commons

I was just editing some code in my theme that broke the header and then my login timed out so now I can't get back in to the wp-admin panel because the domain is mapped to pcp.gc.cuny.edu. Logging in to the commons doesn't log me in to the specific site since it's not mapped to the *.commons.gc.cuny.edu domain.

I am pretty sure that if the domain mapping is reset (so that cpcp.commons.gc.cuny.edu/wp-admin will not require re-loggin in) then I should be able to make the changes that will fix the site. Otherwise I'll need to do a database dump and reset the theme.