CIVIL ACTION H-08-486. March 31, 2010 MEMORANDUM OPINION AND ORDER GRAY MILLER, District Judge Pending before the court is defendants' motion for partial summary judgment on the motor carrier exemption (Dkt. 51) and plaintiffs' cross motion on the same issue (Dkt. 52); plaintiffs' motion for summary judgment on the issue of liability (Dkt 53); and plaintiffs' motions to strike portions of defendants' summary judgment responses and exhibits (Dkts. 62, 67). After review of the motions, responses, replies