If its bullfrogs probably not. But here is what you can do.

Dress as a ninja.
Go over there and collect as many as possible
Bolt right out of there
Get your own indoor 55g tank oe outdoor 55g rubbermaid tub
Set it up nicely.
Then after two years release somewhere else and keep one if you want(Bullfroglets)
While each year you can keep adding more. Or what you can do is, keep em, then sell em to people who like bullfrogs. :P