I'm not sure what lane splitting is. I am going to assume you mean driving in two lanes, and No it is not legal. I live in TX. It is called lane sharing, and it is legal in California when there is more than one lane in each direction.
An ITIN, or Individual Taxpayer Identification Number, is a tax processing number only available for certain nonresident and resident aliens, their spouses, and dependents who cannot get a Social Security Number (SSN). It is a 9-digit number, beginning with the number 9, formatted like an SSN (NNN-NN-NNNN).
The Individual Taxpayer Identification Number (ITIN) is a tax number issued by the IRS (Internal Revenue Service) and it is not related to the USCIS or the Social Security Administration. The ITIN is only issued for tax purposes. An Individual Taxpayer Identification Number (ITIN) does not provide the right to work or live in the United States.