I have a 2008 A4 with 95,000 miles. Rust/corrosion has developed on the driver side door along the trim. There is no other rust on the vehicle body. I've read a lot about the corrosion warranty and the "perforation" requirement, so wondering if anyone can offer opinions if this would constitute "perforation". The closest dealer in 50 miles from me, so I'm seeking some opinions here before I take it in for a dealer review.

Car has been driven exclusively in Minnesota with cold winters and lots of road salt. Thanks in advance for any help!