The Fifth Circuit has held that Louisiana's automatic pardon for first time offenders does not qualify as a full and unconditional pardon, such as would eliminate an aggravated felony and its implications on good moral character for naturalization purposes. The court noted that Louisiana distinguishes between an automatic pardon - which does not restore a person to a "status of innocence" - and a gubernatorial pardon - which does restore a person to a status of innocence.
The full text of Nguyen v. USCIS can be found here:
http://www.ca5.uscourts.gov/opinions/pub/16/16-30904-CV0.pdf