This happened in Roanoke, which is left leaning. Republicans are going all out to cheat in this election.
Edit: Here is the law on tampering with ballots in Virginia. Class 5 felony
https://law.lis.virginia.gov/vacode/title24.2/chapter10/section24.2-1009/
I don’t know if all states have it, but Virginia does have vote history on their voter registration page. It doesn’t show what your vote was, but does show that it was received and counted.