The dog park has been vandalized. Someone stole the picnic table that was in the larger ring and they destroyed the fence in the process (see photos). Now dogs can get out because the fence has collapsed.
Also, there appears to be a pole missing, or a large gap in the doorways of both large and small dog parks that are used to bring in the lawn mowers. For the small dog park, it's large enough that the small dogs <10lbs can get through and escape.
Also, there are very large holes in the ground in the large dog park as if someone or something has been digging.