metalgal,

There are no law against photocopying your own SS card, however if you try to alter it and try to pass as a genuine one, then you have commited a crime. I hope that was not the case of yours. As far as DPS concerns, DPS only accept original SS card, now since you lost it, you may apply with SS Administration. You probably have to produce documents of your legality, and in your case it is not possible, I suppose. Normally DPS do not report these things to DHS, but just like Unknown Guy said, Be careful. If I would be you, I will try to find my original SS card.

Texas do not require a SS card (no.) for a driver license but you still have to prove your legal status, if you dont have two proofs of identity including SS card. Hope this answer to your question.