Is ignorance of the Implied Consent Law a valid excuse for refusing a chemical test of BAC?

Under Maryland's Implied Consent Law, all drivers implicitly agree to submit to a chemical test (such as breath, blood, or urine) to determine blood alcohol concentration (BAC) when they are lawfully arrested for driving under the influence. If a driver refuses to take the test, they face automatic penalties such as license suspension, regardless of their knowledge of the law.

The principle behind this law is to ensure public safety on the roads. If drivers could refuse testing without consequences based on a claim of ignorance, it would undermine the effectiveness of the law and make it difficult to enforce DUI regulations. As a result, ignorance of the Implied Consent Law does not provide any legal justification for refusal, reinforcing the idea that all drivers have a responsibility to understand and abide by traffic laws.