I wish Customs had been that diligent with alfalfa seed from Europe 50 years ago...then we wouldn't have Spotted and Diffuse Knapweed all over the bloody place.
They really overdo the power thingy, don't they?
Did they tell you the "penalty" for "doing it again"?
It's probably a stiffer sentence than bank robbers receive...
As though there'll suddenly be
UNWANTED palms springing up all over British Columbia's grasslands and roadsides.
Duh! That would be a shame.

Barb
Ps--wouldn't it be fun to find that dumpster that Customs throws all the "contraband" into? I'd be a dumpster diver for those seeds!.