This state of mind is a delusion. You are comparing your peak feeling of impairment with the declining impairment that you feel as your body eliminates the alcohol from the blood. But you are not sober. You are only making a dangerous comparison. While alcohol is the most common cause of driver impairment, there are other substances, such as illegal drugs or medications that can create a safety hazard.
Many illegal drugs are extremely dangerous to use, especially when driving.
Take great care not to drive while taking these drugs. Being caught at above .08 per cent blood alcohol in the bloodstream, in itself, is a criminal offense. But you can be impaired on one drink and can be charged and convicted with less than .08 in your bloodstream if you show other symptoms of impairment. The courts will convict a person who, without a reasonable excuse, fails or refuses to provide a sample of their breath or blood to a peace officer. Penalties can include fines, imprisonment, or both, and a prohibition from driving.