Nope.
The gates were going to whomever the DOJ dictated. Had Gonzales defied the DOJ it simply would have ended up in litigation but the result likely would have ended up the same.
"On Monday, the U.S. Justice Department wrote the city a letter saying Virgin America is the only airline it approves of using the two gates.
American Airlines is sub-leasing the gates to Virgin America as part of its deal with the Justice Department to merge with US Airways.
The Justice Department told the city that it would reject the city?s attempts to have Southwest or Delta use the gates. The government says Virgin America would bring competition into the airport dominated by Southwest."
http://dfw.cbslocal.com/2014/05/07/decision-on-love-field-gates-expected-friday/