All summer, hoards of fans of the reality TV show line Washington St. to get a taste of the magical cakes crafted by the gang at Carlo’s Bake Shop, lovingly portrayed on TLC as the Mecca of tri-state area bakeries. So many came this past summer they had to erect barricades across the street next to the CVS and hire crowd control personnel, complete with walkie talkies, to keep fans from furiously rushing the door, absentmindedly getting themselves struck by passing cars, or swooning to the pavement in the 95-degree heat.