My first thought was that the snakes would be in the backyard, and Deb comes in through the garage, so no harm, no foul… but! I did see a garter snake in the garage once (SHHHH! OUR SECRET!) so snakes can get into the garage, apparently.
Assuming Deb came home before I did (we almost always commute together, and when we aren’t it’s because SHE’S working late, because she’s breaking in a new boss who is a very nice man with waaaay too much enthusiasm for his new position) I would get a phone call telling me to come in through the front door, NOT to pull into the garage even though the garage door was wide open and her car was parked on the street, and everything was fine but I might want to not actually go into the garage until I got home and she could brief me.