Pinellas County commissioners imposed limits on how they can use county purchasing cards Tuesday, a result of Commissioner Norm Roche's using his card to hire a private crew to clear debris at a home and buy office furniture last year. After a Times report on his actions, fellow commissioners accused him of embarrassing and misleading them, and violating the county's charter. Now, board members will get to use the cards only for travel and training. Violators could lose the card and be forced to repay the spending. The vote was unanimous, and Roche never brought up his suggestion last month that a grand jury look into the case. He did persuade his colleagues to require that every member is informed every time an allegation about a commissioner's spending is made.