The dfg has no problem with you hunting snakes, they didnt even know SD county had an ordinance until I started talking to them earlier this year.The city and county ordinance as it is written makes no mention of alive or dead, it says possession is illegal in the city and county, federal and state land is not under animal services jurisdiction. Someone would have to register a complaint with animal services before you would hear from them and then it would probably start with you getting a phone call and I seriously doubt they would bother you if you are harvesting them for consumption, my conversations with the director and deputy director of animal services centered around keeping live specimens and they made it clear that is illegal and they will enforce if a complaint is registered. Bottom line I wouldnt worry about it if you are harvesting for consumption.