"Been there, done that, have the T-shirt".... that's one serious wake-up call! Still a little early to return to complacency but, you'll stay on top of this long enough to know when everything reaches a point of stability. Most fasteners will rattle loose within the first 50 miles, if they're going to. A few will sometimes take longer. In my experience, 100-200 miles should be plenty to figure out which, if any, have that nasty tendency...and make corrections. Beyond that, anything that vibrates loose can be considered more or less a freak occurrence.
It still pays to check fasteners, once in a while. There are some natural checkpoints: spring dust-off, any time you need to loosen/remove a wheel or tweak the brakes, or you find a loose fastener by chance. But, no need to lose sleep over nuts & bolts jumping ship at random. It doesn't happen often. Fresh lockwashers, alone, should keep your wheels firmly attached. Adding a little blue Loctite should cure any insomnia.
It still pays to check fasteners, once in a while. There are some natural checkpoints: spring dust-off, any time you need to loosen/remove a wheel or tweak the brakes, or you find a loose fastener by chance. But, no need to lose sleep over nuts & bolts jumping ship at random. It doesn't happen often. Fresh lockwashers, alone, should keep your wheels firmly attached. Adding a little blue Loctite should cure any insomnia.