Re: lucid enough to decline any form of drug testing
Not here in the states if it involves a motor vehicle. If you decline to take the drug test they immediately arrest you and take you to jail to await the judge's court order to take the test. If the test says you were intoxicated, they increase the severity of the original charges. So if you're intoxicated, you're actually better off taking the field test and having your lawyer challenge the field test later.