I know people who could move a bee hive into the store...
Enriched target environment
Make sure it's a hive of African Killer Bees.
Yes and lock the doors on the way out.
California bees might not be good enough for real warfare...unless they come from Southern CA, and just happen to be Africanized. (they've made it as far North as the Eastern portion of SLO County - been there the last 8-10 years even. some of those were pretty damn hot when they first arrived)
South Texas and parts of Arizona have more of that kind, although every "Africanized" colony is not the same. Some are manageable. (in fact, there is so much "african" genome somewhat watered-down, the specialists can't quite always guarantee there isn't a tiny bit of that Scutellata widespread in the Southern States) Yet if one could bring some hot ones, then that could be fun.
It might take a gang of guys in protective clothing carrying shotguns to get it done. The shotguns are to protect the beekeepers/kickers.
Just back a flatbed truck loaded with a dozen or more really nasty colonies (if one has the guts to make them queenless first, so much the better, they'll be in an even fouler mood than usual) then back up right through a plate glass window, then start kicking hives off letting them crash.
It might help too, if one could sneak in a little before-hand and spray the joint down with squashed bee nectar in alcohol (squashed bees let off alarm pheromone).
Crash through, unload with as much more crashing as possible, then drive away. Just don't bring marked hives and frames...or report the damn things stolen first, if that's all one's got. (commercial bee equipment is frequently branded with a registered number)
Good healthy Italians (Apis Mellifera Ligustica) could do the job, but why waste them? And hands off the Carniolans (Carnica), please don't waste THEM.
Here's a semi-funny tall-tale from some years back. Lot's of folks thought he was serious http://www.ibiblio.org/pub/academic/agriculture/entomology/beekeeping/general/bees_history/bees_as_weapons.txt
He admits it was a joke BEE-L Archives Aug. 1996