Quick Question: Where Did The McCain Bumper Stickers Go?

I'm not asking about lawn signs, which are easy to remove. I'm asking about bumper stickers, which once applied are so difficult to remove that they are often seen months or even years later.
Tomorrow will be just four weeks since the election. I see lots of Obama but no McCain bumper stickers. It's certainly possible that bumper sticker technology has improved and the glue has changed. But is something else going on here? Is the election still going on in some sense?
(Related question: How long before we start seeing "Don't blame me, I voted Republican" bumper stickers?)

Winners are proud
After 2004 I saw only Bush/Cheney stickers lingering (always on gas-guzzling SUVs) for months and years -- still see some of those around. People don't want to be associated with the loser, so the losing party's stickers tend to come off more quickly. It's human nature.
The longest tenured here are Wellstone stickers. Oh yes, and that election is still going on in a very real sense . . . the recount still in progress, so Franken and Coleman stickers are not coming off just yet . . . so yes, the campaign is still going on in that sense, at least out here. It's cool to have a Wellstone sticker, because the guy is pretty much a legend . . . the real deal, whether you agreed with him or not, the diminutive college professor who came out of nowhere (had never served in any office prior to his run against Boschwitz) to beat an incumbent who outspent him something like 10 to 1. Paul Bunyan has nothing on Paul Wellstone.
Signs come down because most municipalities have sign ordinances -- they must be removed by the campaigns within a set period of time (days). And the candidates want to quickly retrieve them and put them into storage for their next run (signs are expensive, and reusing in the next campaign saves money, especially important in lower ticket races).
Maybe they have been "Palin"
Maybe they have been "Palin" off.
Answer
I hear that those terrorists that Obama's been palling around with are taking the stickers off of Real Americans' cars at night.