HA! I just realized the mistake. For those who are curious, here is how to properly redirect your category RSS Feed, in your .htaccess file:
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^category/dirtyfeet/feed/
http://www.dirtyfeetpodcast.com/feed/podcast/ [L,R=301]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress