Go to the website in a browser. Select 'View Source'. Search for the word 'form'. Discover that form #1 is the search box in the upper right hand corner, and you are attempting to set non-existent fields in the wrong form.
After that, either try $mech->form_number(2), or better yet $mech->form_name( 'zipForm' ) or even $mech->form_with_fields( 'zipCode' ).
In reply to Re^3: WWW::Mechanize problem
by jasonk
in thread WWW::Mechanize problem
by SavagePerl
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