The Douglas County Sheriff’s Office was right to uphold federal law and not return marijuana seized from a Dixonville man after drug charges were dropped by the state, the Oregon Court of Appeals ruled Wednesday. The three-member panel agreed Dwight T. Ehrensing, 68, and four other people with medical marijuana cards were not entitled to the disputed pot. “I’m disappointed that my client doesn’t get his marijuana back,” said Brian Michaels, a Eugene attorney who represents Ehrensing. Michaels and Douglas County District Attorney Rick Wesenberg agreed the appeals court skirted the issue of supremacy, whether federal law preempts state law …