Record everything. Record your arrival at the polling station. Record going into the booth. Record marking your ballot. Put your drivers license or other gov't ID w/pic in the recording at the same time. (If there's a 'control number' on the ballot, make sure that's in frame too.) Record turning in your paperwork. Record leaving the polling station.

When they cheat, and they're already cheating, your recording proves you 'have standing' for the inevitable court appeal, after bluehair judges start tossing the cheating case(s) for 'no standing'.