They simply haven't found us yet. The universe is a big place to put it mildly.
Sure, if you're looking at the Universe from within. But what if from the outside we're a nice toasty waffle on some Blarzorg's plate, covered in delectable jamberry syrup, waiting to be eaten? Going from point A to point B could be as simple as rolling past the tonsils and flecking the uvula.
"Those durned Einsteinian speed limits. Surely there's a way around these!" The superstring argued.
"Straight to my dog's belly!" The p-brane concurred.
"You're both wrong," Dr. Witten professed, snatching both the scoundrels betwixt tightening fingers, wringing their innards out over the hot, steaming plate.