Simply put, no. The laws pertaining to the use of marijuana while behind the wheel of a motor vehicle mirror the laws pertaining to the use of alcohol behind the wheel. A driver found to be under the influence of marijuana while operating a vehicle could be subject to arrest for OUI: Drugs. This offense carries the same penalties as OUI: Alcohol, including license suspension, fines, and in some cases, jail time.
Also, much like having an open container of alcohol in a vehicle is a $500 civil citation, having an open container of marijuana in a vehicle is now also a $500 civil citation under these new laws. Understand that both a driver AND passenger can be found to be in violation of this law.