I second the advice to call AA and ask to be placed on an earlier flight to LGA. If that's refused, however, all is not lost. The OP said they were flying in F; if that's the case, then they should be permitted to standby for an earlier flight to LGA.
If I were the OP, I'd get off the flight from HNL and find the next departing LGA flight. No reason to sit around DFW for five hours.