Can you take backpacks in to the park?

Yes you can. You can also bring other foods if you like

Thanks To All for your replies on my question...

Yes as well as food and water all of which im sure have size requirements

Sure can.

Yup. https://www.mlb.com/dodgers/ballpark/information/guide

Yes just they search through it

As long as it is not larger than 16" x 16" x 8"

Yes

Yes you can.

You can bring ur own pizza box

Yes if you can bring your own drinks and some peanut. You will save a fortune.

Yes. I recommend small drawstring bags and you're able to bring in snacks. Must be brand new and sealed. If it's been opened prior to entry, you're going to have throw out or put it back in your car.