A citizens' panel was thwarted when it tried to set a $300 limit on state lawmakers' monthly car allowances. Now, with a rate of 53 cents a mile, some have gotten reimbursements of more than $2,000.SACRAMENTO — Reacting to public outrage over legislative perks, a state panel decided last year to cut lawmakers' monthly car allowance to $300, but a legal glitch has allowed some to get up to nine times that amount.