Do I have a case to not only sue DC but also get the arrest record expunged?

I was pulled over for "Passing Stop Sign" at one a.m. The officer wrote on the ticket that my wheel was over the marked line. AlthoughI stopped at the stop sign I was technically in the cross walk. Previously I spent the past week at DC DMV clearing up unpaid parking tickets and getting my license reinstated for failure to pay a previous traffic ticket, specifically b/c my car had been towed. The officer came back and said that he had to arrest me b/c I was driving on a suspended license and that the car was still listed as towed. I explained to him that was impossible as I had everything paid and taken care of. That it was impossible for my car to still be towed if I was driving it. OBVIOUSLY the system had not been updated. I have no record of any kind until this. Do I have a case?