Dna Sample Resubmission Required 15+ Years After Crime

Location: Wisconsin, USA.

Back in my teens I got charged with felony possession of narcotics. MY sentence, 1 year of probation, was served without issue, and the charge was expunged. I went on to live a happy, healthy, law-abiding life ever since. Nearly 20 years later, I get a letter from the DOJ saying the DNA sample they took when I was booked is expiring, and I'm legally required to head to the jail to submit a new sample. I've already done this, but it felt incredibly dehumanizing. Decades later, having grown into a mature, drug-free, responsible adult, being forced to go to the jail (I now live in a large city, so it's not an entirely pleasant place, relatively speaking), get dragged into a locked room in the basement, and have an officer shove a cotton swab into my cheek, was incredibly degrading.

1) Can they do this? (I'm assuming so, onthecountof, they did..)

2) If my felony was expunged, is there anything, next time this comes up, I can do to contest? Any claim to the restoration of civil rights, 4th amendment and whatnot?

3) Real long shot here, but is there anything I can do retroactively to request they destroy my on-hand sample, once again siting expungement, 4th amendment rights, etc?

Sidenote: Let this be a lesson to you young kids out there. If you're going to do dumb shit, know what is, and isn't, a felony. I'm certainly not the dumbass I was when I was 19, but my actions and decisions from back then continue to haunt the adult, and nearly entirely different person I've grown to become, since then.