Traffic cops around the beltway are such a moody bunch... but frankly along that stretch of highway which can seem at times like a slow moving 5 lane parking lot doing 63 mph can make one feel almost giddy.
Honestly what is more vague than driving 2 miles below speed limit?
1. The point, edge, or line beyond which something cannot or may not proceed.
2. limits The boundary surrounding a specific area; bounds: within the city limits.
3. A confining or restricting object, agent, or influence.
4. The greatest or least amount, number, or extent allowed or possible: a withdrawal limit of $200; no minimum age limit.
It strikes me the onus is on the officer to prove that everyone else was driving or desiring to drive exactly 65 mph... which is the maximum speed limit and she was interferring with their compliance as well. From the sounds of the whiners complaining about people who take the sign at its meaning (i.e. MAXIMUM SPEED 65 MPH) which would mean that the "fast lane" is reserved for those wishing to drive at the maximum speed allowed by law they have little regard for the law or the agreements that make about complying with the law. No what they do is complain, accusing her and "people like her" of "slowing" traffic because they have a problem with the speed limit and want to break the law and are angry at her for not doing so.
Then there is the possibility of what appears to be 65 on her speedometer versus the speed her vehicle was actually traveling and she thought she was obeying the law by observing speed limits as she agreed to do when she got her driver's license. A new set of tires can change the calibration if she was sold a set of a different size than stock.
In Maryland the fines for a speeding violation is based on how many miles over posted limit. For example 1-9 miles over is $80. and a 1 point violation.
Since she was going under by a mile or two aybe she should be given a rebate...for not exceeding the limit and the cop drawn, quartered and disemboweled with his entrails strewn over the area of the citation to serve as a reminder to errant police officers who bend to peer pressure and choose not to pursue real criminals who are actually violating the law.
In Maryland there is no 10 mile an hour cushion for exceeding speed limits. A while back the B'more sun wrote an article discussing it.