If driving high you can. If driving while possessing weed you can. It pretty much comes down to if you are doing anything involving driving and marijuana you can loose it.
You may or may not loose control and have a wreck. If you do not panic you will be ok.
you shouldn't even do it because you loose control and crash. putting yourself at risk and others too!
you die
no not really, however driving while your high is a DUI (driving under the influence)
Of which automotive system does the driver have the most direct control while driving?
yes
If the steering wheel is loose while driving the steering rack may be going bad. A bad steering rack leads to a lot of play on the actual wheel.
P0455 = EVAP Emission Control System Leak (Large). Could be as simple as a loose fuel cap. You can keep driving. This is only emissions related but it will fail an emissions test.
Recreationally smoking? Washington and Colorado, but not in public or while driving.
Probably a lot less than driving while texting !
Loose ground?