That is a very good question, Madam Speaker. That is the main reason why I think that the committee members should review the rules and ensure that the cut-off for mail-in ballots is the day before the three-day polling period, or the Friday.
The person cannot go and vote as soon as they request a mail-in ballot. If it is clear that the vote was not received by the Friday, then the person would have two days, or maybe three, to go vote in person, and there will not be any problems.
That is why I think that the cut-off for mail-in ballots should be the night before the polling period begins.