honestly, the Wild canada geese here could be tame, they know people have food plain and simple, ive never seen a problem however with them becomming easier targets due to being captive raised.
the rehab center neer me "rehabs" wild waterfowl much the same way...they let them be with eachother, once there feathered enough to be outside most human contact ends, humans bring food but dont provide any social or mental stimulation...and eventually they move on...
weve got 6 canadas that joined a wild flock on the wetlands neer my house that were rehabed this way...
if the game warden neer you is anything like here, the sanctuaries are full, zoos dont want them, neither do most farms and by the time there "found out" the geese are often too accustomed to people to be "properly rehabilitated" and are slaughtered...
if you dont want to keep them id try leaving them to "go wild" and hopefully they will remove themselves fo you.
or you could place them "for adoption" to a sancturay or private person, if anything happens say you were aware its illegal to SELL them, but not aware of any rules reguarding giving them away...explain the situation...
or just give them to a rehabber who should be able to get themback into their natural habitat.
im sorry your going through this, wish youd have gotten the guys name so he could be reported.