I absolutely believe this. Im sure that you order/receive so many orders that he is buddy-buddy with you.
What's so hard to believe about it, I'm cool enough with the UPS guy at my office that we will sit back a while just to have full blown conversations about politics, religion, and other shit. Probably because we're both japanese. I've had repair guys i've never met come over, and I'll give em a beer, do some small talk, maybe even offer them a bong toke if they're up to it. Most time they aren't, which is fine.
You don't need to whore yourself in order to have good people skills. Called social life.