No; per the US Forest Service, please don't block gates, "make sure to pull fully off roads, even gated closed roads, to ensure you don't limit service and emergency access." A recent scenario proving the importance of not blocking gates was in July 2021 at the trailhead to N76 (adopted by Preserve Rollins Pass) on Rollins Pass West; a lightning strike started a forest fire and emergency crews needed urgent access to this part of Rollins Pass. Thankfully, the rapid response ensured the fire was contained and extinguished at just a quarter-acre in size.