What happens if a driver refuses to sign a speeding ticket?
Hypothetical Facts

<ol>
<li>A driver is pulled over for speeding.</li>
<li>The officer writes a ticket and asks the driver to sign it.</li>
<li>After questioned by the driver, the officer explains a signature is not an admission of guilt, but only indicates "acceptance" (receipt) of the ticket.</li>
<li>The driver refuses to sign the ticket.</li>
</ol>

<p>What will most likely happen next?</p>

<p>It depends on the jurisdiction. Some states don't require a signature. In California refusing to sign is grounds for arrest:</p>

<p><a href="http://www.leginfo.ca.gov/cgi-bin/displaycode?section=veh&amp;group=40001-41000&amp;file=40300-40313" rel="nofollow">CA Codes (veh:40300-40313)</a></p>

<blockquote>
  <p>40302)  Whenever any person is arrested for any violation of this
  code, not declared to be a felony, the arrested person shall be taken
  without unnecessary delay before a magistrate within the county in
  which the offense charged is alleged to have been committed and who
  has jurisdiction of the offense and is nearest or most accessible
  with reference to the place where the arrest is made in any of the
  following cases:<br>
     (a) When the person arrested fails to present his driver's license
  or other satisfactory evidence of his identity for examination.<br>
     <strong>(b) When the person arrested refuses to give his written promise
  to appear in court</strong>.<br>
     (c) When the person arrested demands an immediate appearance
  before a magistrate.<br>
     (d) When the person arrested is charged with violating Section
  23152.</p>
</blockquote>

traffic police