Don't worry.  Your dissent was noted I'm sure.  Something along the lines of "We got X number of emails about this."  I mean, consider the existence of politcal fax/email/letter generators.  If you haven't seen these, look into em, they're kinda neat.
Still, a letter in a sealed envelope has the most weight when communicating with elected officials.  Emails and faxes are like spam to them, you just get ticked off as a number in a column.  Same with written letters, but I've heard that column has more weight than the email and fax columns. 
