I suspect in places like San Francisco, it's Godawful. 

Insurance would cover it, I would pay the deductible, and no assets would be lost.If you are in an area like San Diego where people are more likely to sue, a judge is more likely to find you guilty, and the payout is expected to be higher, you may consider an umbrella insurance policy.

My property is in the middle of downtown San Antonio, 3 bed/1 bath.

Check California and San Francisco law to see if they list the item.

Perfect STR market for people "cutting back" from Carribean/Mexican/US Coastal vacation trips to drivable, more affordable trips from Houston/Austin/San Antonio (even DFW). 

There is and will continue to be a shortage of good, affordable housing in growing markets like San Antonio.

I can totally relate—I’m also a bartender, working towards financial freedom while living in San Diego.House hacking could be a solid strategy for you, especially as a first-time homebuyer.

San Diego) where evictions take forever or cost too much.

Has anyone invested with Invest5s in the past down in San Antonio?

Nope this term was used a lot at the San Jose CA REIA circa 2010.