This is the post on Petfinder
http://search.petfinder.com/petnote/displaypet.cgi?petid=9841233
send them aemail and complain about the ad,they will respond.
http://www.petfinder.com/publicreceptiondesk.htmlat bottom of page.
This is a ad from the same shelter
http://washingtondc.craigslist.org/nva/pet/579343261.html
craigslist rules for pets:[*]
Household pets of any kind including but not limited to dogs, cats, primates, cage birds, rodents, reptiles, amphibians, fish. Re-homing with small adoption fee OK
this shelter charges
$250. The county shelter where I live only charges around $100 and you get most of that back when you have the animal altered.
This is the shelter
http://www.homewardtrails.org/
if you can't adopt, you can sponsor a dog for $300/month or a cat $150/month?