That got a laugh from some in the crowd and even Allala, who was standing next to Foster.
"No, we will not put it in the contract because we are not interested in being audited by naysayers out there and you can take our word for it," Foster said before being interrupted by Allala, who asked Foster not to call her names.
Foster finished by saying "if you don't believe us then don't take it into account.
There were a couple of moments of levity from speakers, including when KISS-FM morning show co-host Tricia Martinez said, "People say El Pasoans won't support a losing team but how many El Pasoans own a Dallas Cowboy jersey?"
Earlier in the meeting, before the ballpark discussion was taken up, members of the public cheered when one of the speakers called for City Manager Joyce Wilson's job.
Shortly thereafter, cheers rose again when a member of the public came to the defense of Niland. Former Mayor Ray Salazar is attempting to recall Niland for her part in supporting the Downtown ballpark.
"This is about our right to vote, stupid," said one member angrily.
While the mayor has the power to veto a vote by City Council, if he did so, it would have to come back to a vote by City Council at a later date. If this occurs, six city representatives will have to vote against the mayor to ensure a ballpark is built in Downtown El Paso.
On Monday, Wilson tried to get ahead of questions about the ballpark by holding a news conference. In that conference a lengthy discussion, Wilson and staffers talked about funding.
According to the city's chief financial officer if the Hotel Occupancy Tax (HOT tax) passes in November the ballpark would be paid off within the 25 years if their predictions hold true.
According to the documentation the City's total debt would be around $96 million, but in a 25 year span using HOT tax money, ticket surcharge money, rent from the ballpark and parking fees the city could see a return of $121 million.
Without the HOT tax, however, the City would be on the hook for around $79 million that would have to come out of the general fund.
Web Producer Leonard Martinez contributed to this story