you are looking for your father.

according to the seller of one store, you need to go to your neighbor, which is what you did. going to his house and asking your neighbor where your father is, the guy answers:

neighbor: oh, your dad? yeah, i was with him.. he's behind my house now. i had to throw him out. he had too much bloxie cola. i didn't want him getting sick on my nice couch!! he had this weird look in his eyes also.. creepy stuff!