Now with the Jacksonville Jaguars after being claimed off waivers one day after the Ravens cut him, Pierce broke discussed the incident for the first time when he met with Jacksonville reporters this week.
"My outlook is that nobody remembers the good things you do, but they always try to scrutinize and criticize the bad things," Pierce told reporters. "I made one mistake in my whole career, my whole life, and now I'm trying to build myself up."
Pierce's case remains pending in the court system. During the arrest, Pierce asked the officer if the case could be kept off the books and accurately predicted how the Ravens would react to this off-field incident.
"Do you know what happened the last time a Ravens player got a DUI?" Pierce said, according to an arrest report. "I'm getting cut tomorrow, not like you care."
Pierce became the eighth player and ninth member of the organization to be arrested during a 13-month span.
"With as many offseason issues as they have and with the zero-tolerance policy, I knew that could be it for me," Pierce said. "But I didn't think there would be a phone call and that would be it."
Pierce said he's not a prone to drinking much, called himself a "good dude, good father," and characterized the St. Patrick's Day episode as an aberration.
"Bad timing, I guess," Pierce said. "Me and a couple of guys went out."
A 2012 third-round draft pick from Temple, Pierce rushed for a career-high 532 yards and averaged 4.9 yards per carry as a rookie during the Ravens' Super Bowl championship season. Pierce has gained 1,334 yards and scored five touchdowns in three NFL seasons.
He is getting a fresh start in Jacksonsville, where he could emerge as a starter as he competes with modest talent in their backfield, including Denard Robinson, Toby Gerhart and Storm Johnson.
"What's done is done," said Pierce, who's playing under a $660,000 nonguaranteed base salary in the final year of a four-year, $2.66 million rookie contract. "I can't change the past. It's all about the future. I made one mistake, and it won't happen again."