I wouldn't feel assured with the response from any law enforcement officer asked specific questions relating to state firearms regulations. (Well perhaps simple questions). There is no way to determine whether or not their personal bias isn't reflected in their answer. Let alone it being the correct one. I can just see using this as an affirmative defense to firearms changes. "Well the cop said it was alright."
When I have a question regarding state firearms laws, I go to the state statutes and ordinances for my answers.