From what I’ve heard from my coworker do actually flew:

Step 1: Attempt radio contact on local frequencies and guard.

Step 2: Try to lead you out of restricted air space

Step 3: Try to REALLY get your attention like doing precision fly so that you are unmistakably aware of them (like a really really close fly by). If this works, try step 2 again

Step 4: Really depends on where you are and/or who you are. If you are willfully violating air space and a civilian, you’ll probably get your certificate revoked and/or face. If you get near something really sensitive and probably are doing so purposefully despite attempts to get your attention, and you’re not over a densely populated area, you could get shot down.