They recently did a "sting" close to my town for a "meth style lab" and they tracked down the target folks because to buy Sudafed, you must show a DL to get it. These guys used their DLs to get dozens and dozens and dozens of boxes of the stuff.
I would have been upset had the cashier not told me what she was up to with MY information. She could have said "in order to buy this, I will need to SCAN your license, is that ok?" and let you make the choice, but to just scan willy nilly with the amount of hackers that are busting into corporate systems is scary!
Im with you! I would be upset.