The current web site for Washington State Parks says there is no longer a permit fee required. Also, the Park closes October 15th to March 14th. Who knows why? http://www.parks.wa.gov/parkpage.asp?selectedpark=Peshastin+Pinnacles&pageno=1
Permits no longer required. There is no set date for opening- it varies. The gate was open on 3/14 of this year, I suspect it has something to do with snow levels- of no concern this year, of course.
Daily vehicle parking fee is now $10. Vehicle parking fee not required if your car has a Washington State Discover Pass.