Infants must be rear-facing and reclined until they are at least 20 pounds AND one year old. Call them to find out when the trained staff are available and to make an appointment to have your seat checked. For additional information about child safety in motor vehicles, the VA DMV has a special section on their web site . Do not swerve to avoid a deer - you are more likely to have a serious accident this way, as you may lose control of your vehicle and go off of the road. If you absolutely cannot avoid hitting a deer, take your foot off of the brake - the deer will be likely to go under your car this way rather than through your windshield.
Deer are most likely to be out and about around dusk and dawn.