There are a few hundred of them in the field right next to my house, and IMHO, looking at them from here, it would take a lot more than a few drinks
Perhaps they were thinking the same thing?
So-called 'lost procedure' is, frankly, an anachronsim. If you're "Errm, not exactly sure of my position", then admit it early and tell someone. Either on the frequency in use or, if necessary 121.5. Fast. ATC will soon sort you out; far better that than blundering into someone's airspace uninvited!
And send them a thank you-gram when you get back!