Just wanted to give an update..
I went to PepBoys last night on a break from work and picked
up the 9004 SilverStar's. I'm not sure if anyone was paying
attention but this past Sunday's paper had a PepBoys ad in it.
The ad has a special of a twin pack (yes, 2 bulbs) of SilverStar's
for $16.88 + a $5 mail in rebate. Yes, you read that correctly.
My local ad can be found here:. Make sure you check yours.

And yes, you can save the image and print the image directly if
you can't find the ad. I did that, went to the store and explained
I got the ad from their site. They said it was a misprint and apologized
for any inconvience. I got pretty pissed off and said something to the
effect of "I drove all the way here for this!?". The manager came up
and apparently felt bad and honored the coupon.
Goes to show a little b*tching can save you money.