The most basic answer is yes, he can require you to sign the ticket without reading it.  The ticket is not a contract that requires your acceptance or declination.  The ticket is a summary of the charges against you and your duties to respond to those charges.  If you refuse to sign a ticket, then an officer can "instanter" you....which basically means taking you to jail so that a magistrate can explain the ticket to you.Even though they can simply require you to sign it, the officer should have been more professional.  Unfortunately, some officers have little patience to treat the public with basic courtesy.  Regardless, the lack of courtsey is not a basis for claiming a violation of rights.