Rhys Bennett gave the hosts the lead as he hammered home from close range, before Lee Angol doubled the lead with a smart finish past Marek Stech midway through the second half.
The Hatters fought back though as James Collins prodded in from Jack Stacey's cross with five minutes to go, with Danny Hylton levelling the score four minutes later. Marek Stech then made arguably the most important save of his short
Town career so far, diving to his left to deny Jimmy Spencer from the penalty spot deep into injury time, after Scott Cuthbert was deemed by the referee to have handled inside the box.
Jones said: "I thought it was a wonderful advert for League Two football. Credit it to them, it was a very difficult place to come to. They changed shape, matched us up and were the better side for 45 minutes.
"We didn't get to grips with it. We didn't get enough of the ball, we didn't play with enough energy. We didn't win the second balls. We didn't win the battle first half, second half we were better.
"We had to change shape which suited us a little bit more on the day and it caused them a lot more problems apart from on the counter for one goal. But after that I thought we were excellent. They could have nicked it, but 2-2 is a fair result. I thought the two sides had a right go.
"I think it was a bit of us not performing and them performing well in the first half. Credit it to them they matched us up and stopped us playing, they got in our faces. They won their second balls and they got a foot in.
"We were brave and got a foothold in the game and until half-time we didn't. I thought we reacted superbly in the second half and it was a magnificent comeback."