One and one-half tons of "household goods" for one legislator for each 90 day session?   I wouldn't be surprised if this will be interpreted as 3,000 pounds each way (and maybe it is).  Also, who is going to police this and what will be the punishment for those who abuse the privilege?    Answers: nobody, and nothing. 
P.S.  These folks won't lift a finger without "due compensation" so they will find a way around this.