Not at all really. I have a Magnum Delta Force and in LSB mode RV108 is the VR frequency adjustment. After a recent alignment by a qualified tech I was told the radio was a tad off. RV108 was very very touchy, you turn it a smidge of a hair and it would change the tx freq enough for people I talk to to notice.
After we got it all set I was curious so I lifted the radio about 2 inches above the towel covered table I was working on dropped it. This slight bump would be about like hitting a medium size pot hole in the mobile. When I keyed up everyone right away said that the radio was off frequency again.
So sorry bud but the way UPS and Fed Ex toss boxes around that it very much a possibility. Heck the radio might even have an issue, DTB is a trusted tech and it is a Galaxy radio.
My experience is that those pots are touchy, but should not readjust themselves from the radio being jarred.
I supspect that might be symptomatic of a pot that is defective with regards to its mechanical stability and if replaced then that symptom might go away.