It shouldn't be our burden to be verify the accuracy or integrity of cab meters, gas pumps, or deli scales. When's the last time you brought your own jug or scale? Common consumer protections like these are what the government should be doing on our behalf. I think there's a clear case for why cabs should be subject to such inspections, and gives us the confidence to jump into any cab. Given the nature of Uber, whether or not Uber needs to fall under the same rules is less clear.