Yes, it is possible.
They must have big stash of booze because it flows freely. LOL
Well they are a suburb of D.C.!
I think if there's anything dastardly going on with Alexandria, we're going to find out it has more to do with all these zombies with a friggin "W" carved into their foreheads, not some secret plan to prevent our heros from finding out "soylent green is people" ;)