This offer was good until May 29th...
Theme Park Insider
http://www.themeparkinsider.com/flume/200605/101/
Six Flags offers tix discount in gas price stunt
2006-05-05
By Robert Niles: Six Flags, every known for its aggressive discounting through everything from cola cans to yogurt lids to bread wrappers, has introduced a new discount promotion, with a timely theme.
The amusement park chain is offering $15 off up to six admission tickets for... a gasoline receipt.
Buy a tank... get $15 off Six Flags. The chain is launching the promotion with ads in the New York Times and USA Today which state:
"Our President is Doing Something about Gas Prices"
Read the fine print to find the punch line: "'Bring any gas receipt to our main gate and we'll give you $15 off admission' -- Mark Shapiro, President/CEO, Six Flags." The deal's good through May 29.
In other Six Flags news, the company's continuing its campaign to get more family visitors by debuting a character brunch, Brunch with Bugs. Kids who attend get a free membership in the chain's new "Carrothead Club," getting them a monthly newsletter with puzzles, games and park news.