Not at a restaurant, but... Last night was Germany night at wine class (working on the WSET Advanced Certificate, am sure I won't pass).
One of the wines we tasted was the Heyl zu Herrnsheim "Baron Heyl" Niersteiner Riesling Spatlese (2004). Man, that was good, although not for those who dislike a little sugar (did have plenty of acidity to balance it out, though). If I took my notes right, it retails for about $26. And I love that many of the German Rieslings are lower alcohol, so you can drink more....