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The white vehicle committed a multi-lane 'drift' to avoid both left-ramp lanes and with no signal: so two moving violations in California. Unsafe lane change. It was very dangerous to even attempt one lane to the white car's 'blind side'. Moreover such a maneuver, with the two-lane attempted change without a signal may also be considered 'aggressive driving'.

Unlike many other states, California’s aggressive driving law does make aggressive driving a criminal offense. In California aggressive driving is treated as an automobile crime. This means that aggressive driving charges may lead to criminal penalties and can potentially remain permanently on one’s criminal record.
When determining whether a person was driving aggressively or not, California courts will consider several factors, such as:

• The speed that the driver was traveling at
• Whether the driver’s actions endangered other drivers
• Dangerous maneuvers such as swerving or tailgating

In California, aggressive driving is initially considered to be a misdemeanor crime. According to California vehicle codes, being convicted of aggressive driving will result in the following penalties:

• Imprisonment for up to 90 days
• A fine of up to $1,000
• Possible increases in automobile insurance rates, depending on the degree of the conviction
• Other consequences such as loss of driving privileges and/or having one’s vehicle impounded

Seeing the video: I'd pursue the improper lane-change infraction and the aggressive driving misdemeanor because of 2 lanes recklessly attempted - two separate violations. But I would not consider the more serious 'extreme "agressive driving"... an intentional felony as the car is a then considered a deadly weapon: Fines not to exceed $10,000; Incarceration in a prison facility for up to 4 years. This was just stupid commute stuff.