This isn't that a big of a deal. I worked for an HD dealership in 97-99. We did a petcock recall on a bunch of bikes. Most had it done while they were getting service or accessories. HD had it down to a 5 minute job. Very few came in just for the recall. I imagine it was a nice little money maker for HD. Get some new shiny bits and we'll take care of your recall while you're here.
Scott