There’s a $10,000 reward for its safe return:

A reward has been offered for a giant inflatable pig which floated into the Californian desert during a concert by ex-Pink Floyd star Roger Waters.
Organisers of the Coachella Festival have put up a $10,000 (£5,090) bounty, plus tickets for life, for its return.
The pig, which is the width of two buses, has a checked ballot box for US presidential hopeful Barack Obama painted on its underbelly.
Waters said “that’s my pig” as it drifted away during Sunday’s gig.
The animal’s flanks bear the slogans “fear builds walls” and “don’t be led to the slaughter”, with a cartoon of Uncle Sam holding two meat cleavers.

Given Obama’s bad day yesterday, it seems like the perfect metaphor.