You don't have to choose between playing it safe—by submitting an absentee ballot—and going to the polls.
If you vote at the polls, your absentee ballot will not be counted. If the unexpected comes up on election day, and you can't get to the polls, your absentee ballot will be counted.
It is perfectly legal to submit an absentee ballot AND vote at the polls. It is the safest way to go, in case the unexpected keeps you from getting to the polls despite your best laid plans.
After the application is processed an absentee ballot will be mailed to the address you provided. Absentee ballots must be postmarked by the indicated deadline for the primary or the general election, or dropped off in person at the County Board of Elections one day before election days.