I don't think she drove past them as she got to Maple Ave about 10 minutes before they did. It's possible that she was at the pool and burger place earlier but I suspect that she would have been captured by the same cameras CS's bike was captured on and that info would have been in the arrest warrant affidavit. The
affidavit states:
8:16 PM Strickland and Wilson leave the parking lot of Pool Burger on Strickland's motorcycle
8:26 PM Armstrong's vehicle drives northbound on Maple Ave and then westbound on East 18th St
8:35 PM Strickland drives northbound through the alleyway, north of East 18th St, on his motorcycle
My guess would be that she was tracking them remotely... done simply if she knew CS's log in for Find My Mobile/iPhone (do we know what kind of phones they had?). AirTags have also been mentioned by others on the thread before, though I'm not sure where she'd hide one on his motorcycle that he wouldn't discover.
Regardless, IMO, she had a plan in mind for at least hours if not longer. I'd like to know when CS set up the pool date with Mo and was it done over text or a call.