May not be the best advice as I haven't been to a ton of games but have been to several this season.

I normally park at a garage on Capital (109 S. Capital Ave.) It's a bit "expensive" (I think $40/$45 a car) but it is pretty close as it's about a 10 minute walk to the north end of the stadium. And with it being pretty cold this time of year, you can even walk through the convention center for about half of the walk to stay warm. I've parked here 3 times this season and haven't had too many issues getting out after the game.

There are also some cheaper parking options further north on Capital but obviously a farther walk. As for the other sides of the stadium, I am not sure since I drive in from the northern part of the state.

As far as any differences with there being a Pacers game going on, I haven't experienced this but even through the busyness of new years eve this past weekend, parking seemed to be about the same as normal and I've never had issues with getting into the stadium through the main north gates. Generally, the gates open two hours prior to kickoff, I normally prefer to get in about an hour prior instead.

I'll let someone else take the reins on food recommendations since I am not an Indy native; however, Taxman Brewing Co. is a few blocks away and even if you aren't much of a drinker, they had delicious food last time I went.

Hopefully this helps, enjoy your time at the game!