Umm, not necessarily. I have dealt with as much crap closed source software as i have open source software. The key technologies and standards underpinning the modern internet are open source/open standards. The internet simply wouldn't exist without them. The website you are currently looking at uses open source software to server you the page you are able to so incorrectly comment on. The amount of times our company has bought 'enterprise' software which is missing key features. Sometimes we are told by the sales reps that these features will be added - only for them not to be before the project has its priority lowered or becomes unsupported due to a merger or acquisition. Its one of the reasons why we now attempt to use as much open source software as is possible. At least when i have dealt with OSS i have been in the situation numerous times where some specific use case isn't supported - and we can throw a developer or 2 at the project to make it supported.

I really see this falling to pieces when the 1st person who does the a large proportion of their driving out of state but happens to live inside of the state but is being forced to fit an odometer based device files a lawsuit against the state of Oregon. A GPS device might end up raising all sorts of civil rights questions however I do think a GPS device however could work (if the cost was low enough), If this device was only capable of being a sort of on/off switch while recording mileage i.e. find the users location then simply storing a true value when someone is within the state of Oregon and on a public road and a false value when someone is outside the state of Oregon and then keeping a count of how many miles a person does when that value is true (while only ever storing one location). The devices inability/unwillingness to keep a location history could be verified by independent academic review.