I would let her go.On my lease agreements the tenants have to park at their assigned spaces (if it's assigned) or if unassigned they must register with me their brand/model/plate numbers on "authorized vehicles". 

You need to use multiple vehicles to get your message across.

Automonious vehicle and truck development is done here in Silicon Valley by 6 different companies.

My pen freezes in the vehicle and mileage tracker apps I've tried don't always work.

I'm pretty motivated to continue down this path of financial freedom and to use real estate investing as one of the vehicles to get me there.

Another business/career or simply a passive vehicle to invest money into?

For instance, I believe that wholesaling could be a great vehicle for me to get started.

Precisely.

The main premise of investing is to make money, so I'd encourage to only consider investing in vehicles that have asset-attribute to it and definitely not a liability and/or just latent.Definition of investment:"the action or process of investing money for profit or material result."

To me it sounds like you are just looking for a low return, low aggravation investment, and if you don't want to consider another vehicle that would be easily achievable.