Defender Jack Smith came to the rescue to earn a point after the Dons were yet again guilty of missing chance after chance at Kingsmeadow.
The Dons only scored four times in their final seven games of the campaign and Ardley was under no illusions as to where his summer rebuild must start.
Ardley said: “It’s hard and that result summed up our season. We just lacked that finishing product and couldn’t take our chances.
“Moments are won and lost from chances created, and today we didn’t have the finishing product.
“Whilst I cannot take responsibility for players missing their chances, because my job is to get them in the right position and have a structure, I can take responsibility for not being able to put a player in the team who can take them.
“These players have given us everything and I haven’t seen a team come here since January and be better than us.
“It is about sticking with the same group of players. But we try and find that player with the description and experience, however we will continue to work hard for next season.”
Ardley will meet with his staff on Tuesday to discuss transfer targets as the preparations begin for another long campaign.
He already has a good idea of the kind of player he needs at Kingsmeadow next season and hopes he can find a way of unlocking a few more defences next season.
He added: “The way to get promoted out of this league is due to narrow margins that make the difference and win you games.
“As a manager a massive part of my job is recruitment and bringing in players.
“I am proud of the players I have brought into this club and I am not going to rest on that and pat myself on the back.
“Right now we have to get some classic League Two attributes in, like grit, and make sure we dig in and keep on delivering results.”