I&#x27;ve not really seen much indication that they&#x27;re abusing the system.  The one commenter above claims the app sent the same letter twice, someone who works for Fixed said that they don&#x27;t send the same form letter every time and both tickets must have had the same error (which would generate the same letter).  In light of that, I don&#x27;t see why a form letter specific to what makes the ticket invalid is an issue.  Why should someone have to come up with a hundred different way to say &quot;There isn&#x27;t a &#x27;No Parking&#x27; sign within X feet, as per city ordinance YYYY&quot;.<p>I also just want to point out, the SFMTA has brought this on themselves.  If they didn&#x27;t have such an egregious erroneous ticket rate, Fixed could never be profitable.  They only get paid if you don&#x27;t have to pay the ticket, so if the SFMTA had an error rate of 5% rather than 33% Fixed wouldn&#x27;t have enough to work with.