Those results should have been released from the get go. That said, I would think standing senators have much bigger fish to fry than the PSI results.
And are we sure we really want this? Honestly, what's to stop the NFL from simply fabricating numbers?
What should happen next year is that some university - paid for by some grant not associated with the Patriots in any way - should conduct its own study. Work with each NFL team or buy tickets. Bring an official Wilson NFL football. Have it packed in a warm, dry, 70-degree bag. If they won't let you in, just stay parked in the parking lot (and not have to pay for game tickets) where the weather conditions are the same as they are on the field. Follow the same procedures as the NFL does - have them in the dry, warm bag until X amount of time until they bring them out to the field and expose them to the elements. Then let the balls sit out there until halftime. Then measure the psi. Log everything. Then publish the results. There's nothing the NFL can do about it. It's really not that difficult.