Adam Vinatieri decided, like former Packer kicker Ryan Longwell, to kick indoors. Hence, he chose the Colts over the Pack as his new team. The Pack were willing to offer both more than Longwell signed for with the ViQueens and also more than the Colts were offering, but apparently these older kickers want a more controlled environment these days. The kicker's equivalent of moving to Florida to retire, apparently.
So, the Pack must continue their search to replace the team's all-time leading scorer. Former Colt kicker Mike Vanderjagt is still available and is probably the best of the remaining free agent kickers. Whether the Pack decides to make a run at signing him, or prefers to go into training camp and the draft sans kicker only time will tell.