It is absolutely illegal to drive while under the influence of weed in marijuana. Authorities in the state are very strict about it and you can be fined anywhere between $390 to $1000. Moreover, you can also face jail time, get your driving license suspended or face probation. Furthermore, we strongly discourage driving while on weed because firstly it is against the law and secondly you would be putting your life (and the life of others on the road) at a risk if you do so.