"Worthless" being the operative word here.
In fact, there were numerous Confederate invasions of Union states & territories -- only two of which were under Lee's command (Antietam & Gettysburg).
In every case, Confederates "lived off the land", took what they needed, destroyed anything of military value they could not take (i.e., railroad bridges), and sometimes destroyed civilian property (i.e., Chambersburg PA).
Regardless of false accusations, both Union & Confederate armies treated civilians reasonably, killing very few and nearly all of those accidentally.
But the Confederate Army always did something for which there is no Union equivalent: Confederates kidnapped free Northern blacks, returning them for sale as slaves in the South.
Central_Va: "At the time of Lee's invasion of PA in 1863 the exchange rate was $0.25 CSD to $1.00 USD."
Still basically worthless because: 1) all "sales" were in fact requisitions, forced not voluntary, 2) Prices, such as they were, were set by Confederates, and 3) Confederate money was "fiat money" backed by nothing and subject to rapid inflation.
For example, by the end of 1863 the dollar you say was worth $.25 in July was quoted at $.06.
In contrast Confederate standing orders were to never harms civilians, pillage or destroy any non military thing. To do so the Rebel soldier would be subject to severe NJP. The two situations were exactly the opposite in every way. The reason why the Chambersburg incident was so widely publicized because it was totally out of character for the Confederate Army/Cavalry to do that.
Rewriting history is something that should be left for communists and fascists. Unless....