I have UK and German citizen friends who have gotten Florida licenses (that are still valid) while in the US on visa waivers

One more tiny hole in the old security blanket, eh?
For some odd reason, most americans think foreign visitors cannot get USDL's. The first thing I do whenever a friend/relative/etc comes to visit is send them down to DPS/DMV with the "required" documents. Guess what comes in the mail a couple of weeks later?