an MIP really is no big deal. If you weren't arrested, it's not on your DPS criminal history, but if you received a DL suspension that would be noted on your driving record. And the court records would exist in either case, but they sure would be tough for someone to find if it was deferred and no DL suspension was reported to DPS.
at any rate, if you got deferred disposition (techically it's not "deferred adjudcation" - it's "deferred disposition" but the concept is the same), and sucessfully completed it, the case is dismissed, and you can get the records expunged and the arrest (if there was one) expunged from your criminal history.
Note that this is only the case for class C misdemeanors. If you got a deferred adjudcation (applicable to class B and above) you cannot get an expunction, but you may be eligble for an order of non-disclosure which limits access to the records.