You can't fix a flat tire at your house if you don't have a garage?It's already law in Sacremento county: http://www.code-enforcement.saccounty.net/Programs/Pages/AutoRepair.aspx
In fact, and news to me, it's apparently been law for several years. From Sacremento code:
Not only that, but what's considered a "normal tool not normally found in a residence"?
So any tool beyond your basic ladies DIY kit is not "normal"?