Nick Carter walked out of Monroe County Detention Center yesterday after allegedly getting involved in a bar fight on Wednesday night. The singer was swept up in a media frenzy this week when Carter had a scuffle with a bartender at The Hog?s Breath Saloon, when the employee refused to serve him. According to police reports, Nick and his pals were ?highly intoxicated.? Wearing a Tampa Bay Buccaneers tank, the former boy band member strode to a waiting taxi on Wednesday evening.