A spokesperson for the Alternative A5 Alliance says they cannot be blamed for the potential loss of millions of pounds in funding for the A5 upgrade.
Work on the construction of a dual carriageway on to stretches of the route was to have begun next month, but has been delayed because the alliance has launched a legal challenge.
As a result, the Department of Rural Development has announced that as long as the delays continue, ten million pounds a month will have to be returned to the exchequer.
This has led to criticism of the alliance.
However, a spokesperson said they are a group of ordinary farmers, business people and householders, and have no knowledge about budgets. He told the BBC that given their stated commitment to their campaign, it should have been obvious that a challenge would be taken.