Rodney doesn't go out of his way to seek Frank, no. But when the man turns up in Olympia on his apartment hunt, Rodney attempts to recruit him to help him dumpster-dive for old electronics. Considering how well their previous middle-of-the-night encounter went, Rodney could use an extra pair of hands to help with carting the crap back to his apartment.

Of course, he sends the text, Scavenge with me. Meet at the Coffee Hat., doesn't give any context, and then hangs out on the patio of his favorite coffee shop between work and home for Frank (and...Eris, though he certainly doesn't know about her) to show up.