Parking is available in many locations within easy walking distance. We've used the Lexus garage which is on the NE side of the venue. There are many "alphabet" lots all over the place. Most charge somewhere between $15 and $30.
There are many lots. We have used several but usually use the Lexus garage now. However, we did get directed away from getting on the highway last time afterwards. Pack patience and your map app if you are not familiar with Downtown Dallas- we ended up in the hospital district before being able to get on the highway but thankfully knew what we were doing.
There are many options available around the AAC for prices ranging from $15 and up. I'd like to point out that getting in and paying the fee may not be as big of an issue. However, after the events the traffic is very jammed and leaving may take up to an hour.
I'm sorry we did not use parking facilities when we were there.
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