We stayed at the Baymont and while their pet fee is a bit high, the room rates are reasonable. They have a fridge and microwave in every room and a really nice breakfast. There is not a ton of room to walk the dogs, but it is adequate. It is about 15-20 minutes from the site. Easy access to the highway.
Drury Inn is another option. I called them and they are a expensive, but no dog fee. They also have fridge in each room and breakfast. They are newly remodeled. I haven't been by here, but did call them for the information. They are 1 exit N of the Baymont and that is where most of the dining is.
Motel 6 is bare basics but is cheap and clean. No dog fee. Be aware that they no longer have carpet so the floors are a bit cold, and noisy if your dogs walk around. They also do not have free wi-fi or breakfast. I have stayed here going to Lisa's seminars and for 1 night I paid less than $50.00 including tax. You can get a fridge for about $3.00/night but they are limited. I don't remember the amount of grass they had to walk. I am sure it was OK but not extensive. It is in the same basic area as Baymont.