In a previous article, (Defly) said:
Because if I can't get into Buttonville I'll go to Buffalo or Port Huron so I
don't have the customs hassle and I have plates for those

When flying across the border, I often use airports on the side I'm coming
from as an alternate because customs gets very antsy if you land somewhere
other than where you said you were going to. Fortunately I've never had
to divert, but once I was going to Oshawa Ontario when ATC told me that
I was going to arrive after curfew (at the time they didn't allow arrivals
after 10pm). I asked if I could divert to Buttonville, and they said
customs wouldn't let me (I guess because of the short notice) so I just
went home and went the next morning.

--
Paul Tomblin http://xcski.com/blogs/pt/
Failure is not an option. It comes bundled with your Microsoft product.
-- Ferenc Mantfeld